Global Patent Index - EP 1097178 A1

EP 1097178 A1 2001-05-09 - GRAFTED COPOLYMERS WITH GOOD LOW-TEMPERATURE IMPACT RESISTANCE

Title (en)

GRAFTED COPOLYMERS WITH GOOD LOW-TEMPERATURE IMPACT RESISTANCE

Title (de)

PFROPFCOPOLYMERISATE MIT GUTER KÄLTESCHLAGZÄHIGKEIT

Title (fr)

COPOLYMERES GREFFES PRESENTANT UNE BONNE RESISTANCE AU CHOC A BASSE TEMPERATURE

Publication

EP 1097178 A1 (DE)

Application

EP 99926474 A

Priority

  • DE 19826135 A
  • EP 9903735 W

Abstract (en)

[origin: DE19826135A1] The invention relates to grafted copolymers P with a defined core-shell morphology and a mean particle size (d50) of between 300 and 750 nm, containing, in relation to P, A) between 0,05 and 2.5 weight % of a stage A having a glass transition temperature of at least 25 DEG C on the basis of a vinyl aromatic monomer; B) between 9.8 and 30 weight % of a stage B having a glass transition temperature of at least 25 DEG C and a mean particle size (d50) of between 100 and 350 nm on the basis of a polymer made of a vinyl aromatic compound and several cross-linking agents; C) between 30 and 70 weight % of a stage C having a glass transition temperature of no more than 0 DEG C, on the basis of an alkyl acrylate; and D) between 20 and 60 weight % of a stage D having a glass transition temperature of at least 25 DEG C, on the basis of a vinyl aromatic monomer.

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

C08F 285/00; C08F 257/02; C08L 51/00

IPC 8 full level (invention and additional information)

C08F 257/00 (2006.01); C08F 257/02 (2006.01); C08F 285/00 (2006.01); C08L 25/12 (2006.01); C08L 51/00 (2006.01)

CPC (invention and additional information)

C08L 51/003 (2013.01); C08F 257/00 (2013.01); C08F 257/02 (2013.01); C08F 285/00 (2013.01); C08L 25/12 (2013.01); C08L 51/00 (2013.01)

Combination set (CPC)

  1. C08L 25/12 + C08L 2666/24
  2. C08L 51/003 + C08L 2666/02
  3. C08L 51/003 + C08L 2666/24

Citation (search report)

See references of WO 9965962A1

Designated contracting state (EPC)

BE DE ES GB NL

EPO simple patent family

DE 19826135 A1 19991216; EP 1097178 A1 20010509; WO 9965962 A1 19991223

INPADOC legal status


2003-07-16 [18W] APPLICATION WITHDRAWN

- Effective date: 20030522

2001-05-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001107

2001-05-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE ES GB NL