Global Patent Index - EP 1051443 A1

EP 1051443 A1 2000-11-15 - POLYMER BLENDS BASED ON DERIVATISED STARCH

Title (en)

POLYMER BLENDS BASED ON DERIVATISED STARCH

Title (de)

POLYMERBLENDS AUF BASIS DERIVATISIERTER STÄRKE

Title (fr)

MELANGES DE POLYMERES A BASE D'AMIDON DERIVE

Publication

EP 1051443 A1 (DE)

Application

EP 98963389 A

Priority

  • DE 9803601 W
  • DE 19757147 A

Abstract (en)

[origin: DE19757147A1] Derivatized starch based polymer blend includes a plasticizer with compatibility-enhancing components comprising esters and oligomeric copolyesters, prepared from carbonic and/or dicarboxylic acids with n CH2 groups (n = 0-6) and aliphatic alcohols with n CH2 groups (n = 1-6) and/or aliphatic diols with n CH2 groups (n = 2-6) and/or polyether polyols of molecular weight 100-2000. Polymer blend comprises 40-80 wt.% starch ester and 20-50 wt.% polyester, polyester amide and/or polyether ester and a plasticizer with compatibility-enhancing properties. The compatibility-enhancing components are esters and oligomeric copolyesters, prepared from carbonic and/or dicarboxylic acids with n CH2 groups (n = 0-6) and aliphatic alcohols with n CH2 groups (n = 1-6) and/or aliphatic diols with n CH2 groups (n = 2-6) and/or polyether polyols of molecular weight 100-2000, where the ratio of carbonate/dicarboxylic acids:diols in the polyester is 1:0.6-1.3 and the OH number is 200-600.

IPC 1-7 (main, further and additional classification)

C08L 3/06

IPC 8 full level (invention and additional information)

C08K 5/10 (2006.01); C08L 3/06 (2006.01); C08L 67/02 (2006.01); C08L 77/12 (2006.01)

CPC (invention and additional information)

C08L 67/02 (2013.01); C08K 5/10 (2013.01); C08L 3/06 (2013.01); C08L 67/025 (2013.01); C08L 77/12 (2013.01)

Combination set (CPC)

  1. C08K 5/10 + C08L 3/06
  2. C08L 3/06 + C08L 2666/02
  3. C08L 67/02 + C08L 2666/26
  4. C08L 67/025 + C08L 2666/26
  5. C08L 77/12 + C08L 2666/26

Citation (search report)

See references of WO 9932555A1

Designated contracting state (EPC)

BE CH DE ES FR GB IT LI NL

EPO simple patent family

DE 19757147 A1 19990624; EP 1051443 A1 20001115; WO 9932555 A1 19990701

INPADOC legal status


2002-05-22 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20011009

2001-07-11 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010529

2000-11-15 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000912

2000-11-15 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE CH DE ES FR GB IT LI NL