Title:
デンプンと熱可塑性ポリマーからなる生分解性ポリマー組成物
Document Type and Number:
Japanese Patent JP4034357
Kind Code:
B2
Abstract:
Polymeric compositions comprising thermoplastic starch and a thermoplastic polymer incompatible with starch, in which the starch constitutes the dispersed phase and the thermoplastic polymer constitutes the continuous phase, selected:A) from compositions comprising an agent with an interfacial effect selected from esters of polyols with mono- or polycarboxylic acids with dissociation constants within certain limits, the esters having specific values of the hydrophillic/lipophilic balance index HLB or being amongst the non-ionic surfactants which are soluble in water but cannot significantly be extracted by water from the compositions which contain them,B) from compositions wherein the thermoplastic polymer is an aliphatic or aliphatic-aromatic copolyester wherein the ratio R between the average viscometric molecular weight and the melt index is greater than 25,000 andC) from compositions wherein the thermoplastic polymer is selected from aliphatic-aromatic copolyesters, polyester-amides, polyester-ethers, polyester-ether-amides, polyester-urethanes and polyester-ureas and wherein the compositions are obtained by extrusion of the component maintaining a water content during the mixing stage from 1 to 5% by weight.
Inventors:
Bastioli, Katya
Bellotti, Vittorio
Cella, Jean Domenico
Del Giudice, Luciano
Montino, Sandro
Gabriele, Perego
Bellotti, Vittorio
Cella, Jean Domenico
Del Giudice, Luciano
Montino, Sandro
Gabriele, Perego
Application Number:
JP52105598A
Publication Date:
January 16, 2008
Filing Date:
November 05, 1997
Export Citation:
Assignee:
NOVAMONT SOCIETA PER AZIONI
International Classes:
C08L3/02; C08G18/08; C08G18/42; C08J5/18; C08K5/10; C08L3/00; C08L67/02; C08L67/04; C08L75/06; C08L77/00; C08L77/06; C08L77/12; C08L101/00; C08K5/00; C08K5/103
Domestic Patent References:
| JP8081634A | ||||
| JP7509514A |
Foreign References:
| WO1995024447A1 |
Attorney, Agent or Firm:
Aoyama Aoi
Yasuo Shibata
Yasuo Shibata