Process for the preparation of composite material formed from a

Details Process for the preparation of composite material formed from a Process for the preparation of composite material formed from a

1995-10-13

1997-04-29

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524514, 524538, 525 66, 525178, 525183, 525184, 264255, 264259, 264275, 4273935, 36 25R, 36 32R, 36 31, 36114, C08J 324, C08K 536, C08L 5300

Patent

active

056249942

ABSTRACT:
The invention relates to a process for the preparation of composite material formed from a vulcanized elastomer, containing carboxylic acid or dicarboxylic acid anhydride groups, in combination with a thermoplastic elastomer containing polyamide blocks, which comprises vulcanizing an elastomer composition comprising said vulcanizable elastomer, a crosslinking system and, optionally, diverse adjuvants in a mold, one part of which is occupied by said thermoplastic elastomer containing polyamide blocks, the vulcanization temperature being between -15.degree. C. and +5.degree. C. with respect to the Vicat point of said thermoplastic elastomer containing polyamide blocks, the elastomer composition and the vulcanization kinetics being such that the material shows cohesive failure when subjected to stress for separation of the two elastomers.
This process leads to composite materials which have excellent properties, in particular in respect of tensile strength (cohesive failure).
The invention also relates to the composite material thus formed and its application in sports articles produced with the aid of said materials.

REFERENCES:
patent: 3972973 (1976-08-01), Yardley et al.
patent: 4996263 (1991-02-01), Pyke et al.
patent: 5132182 (1992-07-01), Grosse-Puppendahl et al.

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