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4072810 |
A new class of compounds: R-W-R' where R and R' are identical oxy radicals containing peroxide functions such as dialkyl or diaralkyl peroxide, peroxyketal, peroxyester, or monoperoxycarbonate, and W is a carbonyl group, or carbonyl cont...
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3985720 |
Ethylenically unsaturated material susceptible to free-radical polymerization, e.g., vinyl chloride monomer, is polymerized, e.g., in an aqueous medium, with an initiator system comprising, in combination, alkaline reagent, e.g., sodium ...
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3984386 |
Ethylenically unsaturated material susceptible to free radical polymerization, e.g., vinyl chloride monomer, is polymerized, e.g., in an aqueous medium, with an initiator system comprising, in combination, dialkyl pyrocarbonate, hydrogen...
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3912791 |
Tertiary-alkyl halocumyl peroxides of the formula ##EQU1## WHEREIN X is F, Cl, or Br; n = 1-5; R is H, alkyl, cycloalkyl, or aryl; and R 1 is tertiary-alkyl of 4-8 carbon atoms. These peroxides are useful for crosslinking polymeric mate...
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3903200 |
This invention relates to a process for the continuous mass polymerization of a monomer formulation comprising at least principally of a monoalkenylaromatic monomer and an ethylenically unsaturated nitrile monomer having dispersed therei...
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3903199 |
This invention relates to a process for the continuous mass polymerization of a monomer formulation comprising at least principally of a monoalkenylaromatic monomer and an ethylenically unsaturated nitrile monomer having dispersed therei...
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3879353 |
Multifunctional peroxycarbonate esters are prepared by reacting a salt of a linear copolymer, having acid functionality, with a carbonate under oxidizing conditions. The process of this invention can be adapted to permit the in situ gene...
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3857828 |
Di-(2-phenoxyethyl) peroxydicarbonate and improved processes employing same as initiators for the polymerization of ethylenically unsaturated monomers (such as vinyl chloride) and as curing catalysts for curing unsaturated polyester resi...
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3855194 |
A polymer of the class consisting of a homopolymer of butadiene or a copolymer of butadiene and styrene or the like, at least 40% of which polymer is butadiene and at least 80% of the repeating butadiene units are of the 1,2-configuratio...
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3800007 |
Block copolymers are prepared by polymerizing an unsaturated monomer in the presence of a polymerization catalyst and a chain transfer agent which is a cumyl peroxide containing one or more alkyl or cycloalkyl substituents, which substit...
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3694478 |
An improved process for grafting organopolysiloxanes which comprises the gradual addition of a free-radical initiator to a heated mixture containing an organopolysiloxane and an unsaturated organic monomer in order to control the tempera...
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3687918 |
A method of polymerizing acrylonitrile polymers at elevated temperatures and superatmospheric pressure conditions in a novel organic, preferably aqueous-organic, reaction medium in which the monomeric reactants and the polymerized acrylo...
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3668139 |
A catalyst, containing a ketone peroxide, e.g., methyl ethyl ketone peroxide, and an organic non-ketonic diperoxide, e.g., 2,5-dimethyl-2,5-bis(2-ethyl hexanoyl peroxy)hexane, is used to cure polyester resins containing over 900 p.p.m. o...
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3657469 |
An electric cable termination module is formed of a peroxide-cured ethylene propylene terpolymer that is treated to form carbon-to-carbon cross linked bonds throughout the molecular structure of the elastomer. The peroxide-cured insulati...
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