公开(公告)号：US5095054A

公开(公告)日：1992-03-10

申请号：US539846

申请日：1990-06-18

Applicant: Gustav Lay ,  Johannes Rehm ,  Robert F. Stepto ,  Markus Thoma ,  Jean-Pierre Sachetto ,  David J. Lentz ,  Jakob Silbiger

Inventor： Gustav Lay ,  Johannes Rehm ,  Robert F. Stepto ,  Markus Thoma ,  Jean-Pierre Sachetto ,  David J. Lentz ,  Jakob Silbiger

IPC: A61K47/30 ,  A01N25/10 ,  A61K47/32 ,  A61K47/36 ,  C08J5/18 ,  C08L3/00 ,  C08L3/02 ,  C08L23/04 ,  C08L25/04 ,  C08L101/00

CPC classification number: A01N25/10 ,  A01N25/34 ,  C08B31/04 ,  C08L3/02 ,  C08L29/04 ,  C08L31/04

Abstract: A thermoplastic polymer composition comprising:(a) a destructurized starch, and either(b) an effective amount of at least one compound selected from the following: (1) a polymer which contains at least two different types of functional groups, one of said types of these groups being hydroxyl groups; (2) at least one polymer which does not contain hydroxyl groups and is selected from the group consisting of polymers which contain at least two types of functional groups bound to the same molecule one type of these groups being carboxylate groups; (3) at least one polymer selected from the group consisting of polymers which contain tertiary amino groups and/or salts thereof and/or quaternary ammonium groups; (4) at least one polymer selected from the group of polysaccharides which have been chemically modified to contain added hydroxyalkyl groups and/or contain alkyl ether groups, and/or contain ester groups; (5) at least one compound selected from the group consisting of copolymers of vinyl pyrrolidone; (6) at least one compound selected from the group consisting of cationically modified polysaccharides; (7) at least one compound selected from the group consisting of anionically modified polysaccharides; (8) at least one polymer selected from the group of copolymers containing vinyl alcohol units together with aliphatic chain units as are obtained by copolymerization of vinyl esters, preferably vinyl acetate, with unsaturated monomers containing no functional group with subsequent hydrolysis of the vinyl ester group; (9) at least one compound selected from the group consisting of polysaccharide graft copolymers and graft copolymers of polysaccharide derivatives; (10) at least one compound selected from the group consisting of polyalkyleneimine polymers and polyalkyleneimine copolymers; (11) at least one compound selected from the group consisting of styrene sulfonic acid polymers, styrene sulfonic acid copolymers, and salts thereof; and (12) at least one compound selected from the group consisting of polymers and copolymers which contain carboxylic groups which partially or wholly are present in the form of their salts and wherein said polymers or copolymers do not contain further functional groups; or(c) At least one substantially water-insoluble thermoplastic polymer. combinations of (a), (b) and (c) are also disclosed.

公开(公告)号：US5405564A

公开(公告)日：1995-04-11

申请号：US122256

申请日：1993-09-15

Applicant: Robert F. T. Stepto ,  Ivan Tomka ,  Markus Thoma

Inventor： Robert F. T. Stepto ,  Ivan Tomka ,  Markus Thoma

IPC: B29B9/12 ,  A61F13/15 ,  B29B13/02 ,  B29C45/00 ,  B29C45/73 ,  B29C47/00 ,  B29C49/00 ,  B29C67/24 ,  C08J3/12 ,  C08J5/00 ,  C08L3/02

CPC classification number: C08J5/00 ,  B29C67/24 ,  C08L3/02 ,  A61F13/15252 ,  A61F2013/15235 ,  B29K2003/00 ,  C08J2303/02

Abstract: The invention refers to a process of forming shaped articles from starch, which process comprises:(a) heating a composition comprising a pre-processed and essentially destructurized starch/water material, at a water content in the range of from 10 to 20% by weight based on the weight of the composition to a temperature sufficient to essentially destructure the starch.(b) transferring the melt to a mold while maintaining said water content and(c) cooling the melt in the mold to a temperature below its glass transition temperature to form a solid shaped articleand articles made by this process.

Abstract translation: 本发明涉及一种由淀粉形成成型制品的方法，该方法包括：（a）将包含预处理和基本上变性淀粉/水材料的组合物以10-20％的水含量加热至 基于组合物的重量至足以使淀粉基本上破坏的温度。 （b）将熔体转移到模具中同时保持所述水分含量，和（c）将模具中的熔体冷却至低于其玻璃化转变温度的温度，以形成固体成型制品和通过该方法制成的制品。