EP 0000429 B1 19811028 - THERMOPLASTIC MOULDING MATERIALS BASED ON A STYRENE-ACRYLONITRILE COPOLYMER, AN ELASTOMER AND A POLYIMIDE
Title (en)
THERMOPLASTIC MOULDING MATERIALS BASED ON A STYRENE-ACRYLONITRILE COPOLYMER, AN ELASTOMER AND A POLYIMIDE
Publication
Application
Priority
GB 2826077 A 19770706
Abstract (en)
[origin: EP0000429A1] The invention relates to the field of thermoplastic moulding materials, more particularly the use of elastomers to modify such materials to improve their impact resistance. <??>A problem with this approach is that when elastomers are blended with thermoplastic polymers such as styrene/ acrylonitrile copolymers the flexural strength of the material is considerably reduced. <??>The invention provides a thermoplastic moulding material comprising styrene/acrylonitrile copolymer, an elastomeric material having an elongation at break greater than the styrene/acrylonitrile copolymer, a polyimide prepolymer and a reinforcing filler. <??>The polyimide prepolymer is an addition polyimide prepared from a polyamine and a bis-imide of an unsaturated carboxylic acid. <??>The reinforcing filler is glass fibre or mica, although other fillers may be included along with these. <??>The elastomeric material may be a sulphur vulcanizable rubber or a thermoplastic rubber. If vulcanizable, the rubber is preferably used uncured. <??>Use of the moulding material is in the manufacture of moulded plastics articles.
IPC 1-7
IPC 8 full level
C08L 33/00 (2006.01); C08K 3/00 (2006.01); C08K 3/34 (2006.01); C08K 7/00 (2006.01); C08K 7/14 (2006.01); C08L 7/00 (2006.01); C08L 21/00 (2006.01); C08L 23/00 (2006.01); C08L 25/00 (2006.01); C08L 25/12 (2006.01); C08L 33/02 (2006.01); C08L 33/18 (2006.01); C08L 51/00 (2006.01); C08L 51/02 (2006.01); C08L 73/00 (2006.01); C08L 77/00 (2006.01); C08L 101/00 (2006.01); C08L 9/02 (2006.01); C08L 79/08 (2006.01)
CPC (source: EP US)
C08K 7/14 (2013.01 - EP US); C08L 25/12 (2013.01 - EP US); C08L 9/02 (2013.01 - EP US); C08L 79/085 (2013.01 - EP US)
C-Set (source: EP US)
Designated contracting state (EPC)
BE DE FR GB NL SE
DOCDB simple family (publication)
EP 0000429 A1 19790124; EP 0000429 B1 19811028; DE 2861259 D1 19820107; DK 153560 B 19880725; DK 153560 C 19881128; DK 303378 A 19790107; IT 1106420 B 19851111; IT 7850159 A0 19780704; JP S5417962 A 19790209; JP S621974 B2 19870117; NO 158748 B 19880718; NO 158748 C 19881026; NO 782343 L 19790109; US 4212792 A 19800715
DOCDB simple family (application)
EP 78300104 A 19780629; DE 2861259 T 19780629; DK 303378 A 19780705; IT 5015978 A 19780704; JP 8184178 A 19780705; NO 782343 A 19780705; US 91956578 A 19780627