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6004428 |
A process for dissolving a binder off a fiber web bonded therewith includes treating the fiber web, which is bonded with a polymeric binder having carboxylate groups crosslinked via alkaline earth metal cations, with an aqueous solution ...
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5395692 |
This invention relates to a polyester comprising repeating units having the structure: ##STR1## wherein R 1 is selected from the group consisting of hydrogen, alkyl having 1 to 6 carbon atoms and aryl having 6 to 10 carbon atoms and R 2...
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5336457 |
Compostable polymeric sheets of biodegradable or environmentally degradable polymers are included. These composite sheets may be made by extrusion and are compostable in municipal solid waste treatment facilities. The composite film is f...
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5187249 |
Photodegradable polymers comprising B-alkoxy substituted vinyl ketone functionality and thermoplastic articles formed therefrom.
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5133909 |
A biologically degradable film is prepared consisting of a synthetic polymer and a biologically degradable polymer. The biologically degradable polymer is divided into small particles in an aqueous suspension by means of enzymes that spl...
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4839450 |
Moisture-shrinkable films can be extrusion blown from modified starch-poly(methyl acrylate) graft compolymers. The films shrink when exposed at room temperature to relative humidities approaching 100%. The films have potential applicatio...
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4778857 |
Uncured rubber compositions containing fused aromatic furazan oxides exhibit improved processability and reduced viscosity. Useful furazan oxides have both carbons of the furazan ring as part of a fused aromatic ring and include benzofur...
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4709808 |
A group of degradable polymer compositions including admixtures of ethylene-carbon monoxide copolymer with defined proportions of high density polyethylene, linear low density polyethylene or polypropylene is disclosed. The compositions ...
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4601896 |
This invention provides oral dosage forms of therapeutic agents such as digestive enzymes which are subject to degradation and loss of activity at gastric pH. and compositions and methods for preparing same. Capsules of their components ...
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4482701 |
Preparation of hydrolyzable polyester resin comprising reacting polycarboxylic acid and polyhydric alcohol components, which is characterized by using, as at least part of said polyhydric alcohol component, a metallic salt of hydroxy car...
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4337181 |
Film-forming formulations comprising starch, ethylene acrylic acid copolymer, and optionally polyethylene, can be blown into films upon neutralization of a portion of the copolymer acid functionality. The resultant biodegradable films ha...
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4282076 |
A process for preparing an environmentally stable plastic composition having narrow molecular weight distribution by visbreaking a propylene polymer using an activated portion of the propylene polymer as a prodegradant. The process inclu...
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4272417 |
A stable, liquid seed coating composition is provided, including a binding agent, an active ingredient and a coloring agent in a liquid medium including water and a polyol.
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4256851 |
There is disclosed an environmentally degradable plastic composition comprising an organic polymeric material having dispersed therein at least one ethylenically unsaturated alcohol or ethylenically unsaturated ester derived therefrom as...
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4224416 |
There is disclosed an environmentally degradable plastic composition comprising an organic polymeric material having dispersed therein at least one amine compound as a readily autoxidizable organic substance.
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4212955 |
There is disclosed an environmentally degradable plastic composition comprising an organic polymeric material having dispersed therein at least one trialkyl ortho ester as a readily autoxidizable organic substance.
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4207221 |
There is disclosed an environmentally degradable plastic composition comprising an organic polymeric material having dispersed therein at least one unsaturated wax as a readily autoxidizable organic substance.
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4197375 |
Plastic polyolefins which are resistant to photodegradation are combined with polyisobutylene to improve photodegradability.
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4191320 |
There is disclosed a degradable article made from photodegradable polymeric or plastic compositions comprising at least one organic polymer or copolymer and at least two different aromatic carbonyl photosensitizers.
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4176145 |
Polymer compositions which have accelerated rates of degradation on exposure to ultraviolet radiation, e.g. direct sunlight in an outdoor environment, comprise a blend of a major proportion of a normal, standard synthetic polymer, e.g. p...
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4156666 |
A degradable synthetic resin composition comprising a polyolefin, about 0.2 to 10% by weight of an organic degradation promotor and, optionally, about 10 to 60% by weight of an inorganic filler, and films for use in the agricultural envi...
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4144153 |
A process for producing a photodegradable rubber foamed products of excellent softness, which comprises mixing 1,2-polybutadiene with 0.1 to 3.0% of a photosensitizer and with a thermally decomposable foaming agent, irradiating with ultr...
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4125495 |
A biodegradable composition contains a high proportion, i.e., over 50% of biodegradable starch. The composition is particularly useful for making trays for holding meat. These trays are liquid repellant but gas permeable.
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4121025 |
The invention provides means for controlling the degradation of vinyl polymers by incorporating therein at least one non-ionic organo-soluble complex of a metal having an atomic number from 22 to 29, 40 to 47 or 57 to 79, the complex bei...
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4101720 |
There is disclosed a novel degradable plastic composition consisting of an organic polymeric material, said material having dispersed therein at least one organic derivative of a transition metal and at least one readily autoxidizable or...
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4100334 |
Polymers of the type commonly used in packaging are rendered degradable through the action of sunlight by adding thereto up to 3% of an olefinically unsaturated compound containing at least two double bonds, such as 1,6-diphenylhexatriene.
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4076655 |
Polystyrene compositions, including polystyrene film and foamed polystyrene, containing as a photodegradability enhancing agent an organic carbonyl-containing compound, preferably benzoin; and such compositions containing in addition to ...
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4073764 |
A plastic composition degradable under the influence of weather or light, comprising a plastic material and finely divided titanium dioxide with a specific surface of more than about 20 m 2 /g. Preferably the titanium dioxide is obtaine...
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4067836 |
An environmentally degradable polymer based composition which has been exposed to actinic or ionizing radiation and which comprises an ethylene polymer base resin, and a synergistic combination of an auto-oxidative polymer or low molecul...
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4056665 |
There are disclosed novel photodegradable polymeric or plastic compositions comprising at least one organic polymer or copolymer and at least two different aromatic carbonyl photosensitizers.
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4056499 |
There is disclosed the preparation of a gradable polymeric composition by the chemical modification of a polymeric material such as a polymer or copolymer. The preparation comprises reacting in the presence of free radicals the polymeric...
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4051306 |
There is disclosed the preparation of a degradable polymeric material consisting essentially of an organic polymeric base containing a degradation-promoting amount of a partially degraded organic polymer. The organic polymeric base and t...
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4049618 |
The use of dicyclopentadienyl iron, or derivatives thereof, in physical mixture with polyvinyl chloride plastics to produce polyvinyl chloride plastic having reduced smoke generating properties.
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4048410 |
There are disclosed novel degradable plastic compositions consisting essentially of an organic polymer containing at least one organic chelating agent. The agent is one which chelates metal so as to form a metal complex which acts to acc...
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4045388 |
A novel resin composition is obtained by blending a hydrophilic pullulan with 2 to 98 wt %, based on the total resin weight, of a hydrophobic thermoplastic resin. In case the amount of the thermoplastic resin is 2 to 50 wt %, there is ob...
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4042765 |
Plastic compositions containing polyolefins and substituted nitrogen heterocyclic compounds having the formula: ##STR1## wherein X is nitrogen or CH, and R 1 , R 2 , R 3 and R 4 are from the group hydrogen; a straight or branched chain...
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4042764 |
Disclosed are photodegradable and thermostable polymeric compositions based on a vinyl or vinylidene polymer such as polyethylene or polypropylene, at least one compound of a transition metal which is soluble in said polymer and which ha...
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4042763 |
Resin compositions having enhanced photodegradable characteristics are prepared by incorporating minor quantities of a cobalt salt such as cobalt naphthenate in a polymer blend containing at least 90 weight % of a film-forming ethylene p...
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4042568 |
Condensation polymers such as polyamides polyesters, polyurethanes, polyepoxides, polyamide esters, polyureas and polyamino-acids which are photodegradable on exposure to U.V. light, due to the presence in the copolymer backbone of units...
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4039731 |
Polyolefins capable of photodegradation are prepared by incorporating in the polyolefin an additive containing chlorine, bromine, or iodine and either a nitrogen or a sulfur group.
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4038228 |
There is disclosed a novel degradable plastic composition, said composition being degradable in the absence of electromagnetic radiation and consisting essentially of an organic polymer having dispersed therein at least one transition-me...
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4038227 |
Photodegradable hydrocarbon polymers that are susceptible to attack by common microorganisms after exposure to sunlight in a natural atmospheric environment. The polymers include polystyrene and polyethylene polymers and copolymers modif...
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4037034 |
Plastic compositions containing polyolefins and dinaphthylphthalate compounds having the formula: ##STR1## wherein R 1 , R 2 , R 3 and R 4 independently are from the group hydrogen; a straight or branched chain alkyl group having from ...
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4028480 |
Photodegradable polyethylene or polystyrene compositions of copolymers thereof containing up to 500 ppm of iron in the form of a ferrous carboxylic acid salt having a substituted alkyl chain of at least 6 carbon atoms.
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4025580 |
There is disclosed a process for preparing chemically modified styrene polymers and copolymers which comprises treating a polystyrene or a styrene copolymer with an acyl halide in the presence of a Lewis acid so as to introduce ketone gr...
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4024324 |
A novel composition comprising an aryl ketone, a borate or phosphate ester of an alkanolamine, and a polyolefin, said composition being particularly subject to a controlled degradation.
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4021388 |
A biodegradable composition comprises a synthetic resin, a biodegradable granular filler such as natural starch and preferably a substance autoxidizable to yield a peroxide which attacks the carbon to carbon linkages in the resin.
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4020249 |
Polyolefins capable of photodegradation are prepared by incorporating in the polyolefin an additive containing chlorine, bromine, or iodine and either a nitrogen or a sulfur group.
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4017668 |
Polyolefins capable of photodegradation are prepared by incorporating in the polyolefin an additive which contains chlorine, bromine, or iodine directly linked to the nitrogen atom of an amide or imide group.
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4017667 |
Polyolefins capable of photodegradation are prepared by incorporating in the polyolefin an additive which contains chlorine, bromine, or iodine directly linked to the nitrogen atom of an amide or imide group.
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