Global patent index - EP 1086177 A1

EP 1086177 A1 2001-03-28 - THERMOPLASTIC MOULDING MATERIALS

Title (en)

THERMOPLASTIC MOULDING MATERIALS

Title (de)

THERMOPLASTISCHE FORMMASSEN

Title (fr)

MATIERES MOULABLES THERMOPLASTIQUES

Publication

EP 1086177 A1 (DE)

Application

EP 99914568 A

Priority

  • DE 19817218 A
  • EP 9902318 W

Abstract (en)

[origin: DE19817218A1] Use of polyisobutylene to improve the flow and extrusion characteristics of thermoplastic molding materials based on acrylic elastomer core/hard styrene shell graft polymer particles, styrene resin and styrene-butadiene resin. Thermoplastic molding materials comprising: (A) 20-98 wt.% of a particulate graft copolymer with (a1) 30-90 wt.% of a rubbery core of (a1i) 80-99.99 wt.% of a (C1-C10 alkyl)esters of acrylic acid, (a1ii) 0.01-20 wt.% of at least one crosslinking monomer and (a1iii) 0-19.99 wt.% of one or more further monomers, (a2) 10-70 wt.% of a grafted shell of (a2i) 50-100 wt.% of a styrene compound of formula (I), (a2ii) 0-50 wt.% of at least one mono-ethylenically unsaturated nitrile compound and (a2iii) 0-40 wt.% of one or more further monomers; R<1> and R<2> = H or 1-8 C alkyl; n = 0, 1, 2 or 3 (B) 0.5-78.5 wt.% of a thermoplastic polymer of (b1) 50-100 wt.% of a styrene compound of formula (I) above, (b2) 0-50 wt.% of at least one monoethylenically unsaturated nitrile compound and (b3) 0-40 wt.% of one or more further monomers; (C) 1-79 wt.% of a copolymer of (c1) 30-90 wt.% styrene and/or alpha -methylstyrene, (c2)10-70 wt.% butadiene and (c3) 0-30 wt.% of one or more further monomers, in which the olefinic double bonds are completely or almost completely hydrogenated; and (D) 0.5-30 wt.% of a copolymer of (d1) 50-100 wt.% isobutene and (d2) 0-50 wt.% of one or more further monomers.

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

C08L 51/00; C08L 25/12; C08L 53/02

IPC 8 full level (invention and additional information)

C08F 265/04 (2006.01); C08L 51/00 (2006.01)

CPC (invention and additional information)

C08F 265/04 (2013.01); C08L 51/003 (2013.01)

Combination set (CPC)

  1. C08F 265/04 + C08F 212/08
  2. C08L 51/003 + C08L 2666/04

Citation (search report)

See references of WO 9954401A1

Designated contracting state (EPC)

DE

EPO simple patent family

DE 19817218 A1 19991021; AU 3333499 A 19991108; EP 1086177 A1 20010328; US 6518361 B1 20030211; WO 9954401 A1 19991028

INPADOC legal status

2003-05-21 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Effective date: 20030326

2001-03-28 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000901

2001-03-28 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE