Void control in thermoplastics containing silicone interpenetrat

Details Void control in thermoplastics containing silicone interpenetrat Void control in thermoplastics containing silicone interpenetrat

1987-09-21

1989-07-18

Jacobs, Lewis T.

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...

524438, 524400, 524440, 524441, 524500, 524537, 524539, 524540, 524542, 524861, 524862, 524866, 525100, 525104, 525106, 525422, 525425, 525427, 525431, 525426, 525903, C08L 5900, C08L 6900, C08K 716, C08K 704

Patent

active

048494690

ABSTRACT:
Thermoplastic compositions and composites are produced which have fewer and smaller voids with more consistent dimensions compared to conventional unreinforced and fiber reinforced thermoplastics. The high modulus thermoplastic contains silicone semi-interpenetrating polymer networks which are formed by vulcanization within the thermoplastic and initiated during melt processing. Parts molded from the compositions are more homogeneous, with evenly distributed voids, thus reducing the possibility of strss fractures. The compositions are particularly useful in the molding in thick cross-section and variable thickness parts and have been found to have increased thermal stability.

REFERENCES:
patent: 4500688 (1985-02-01), Arkles
patent: 4695602 (1987-09-01), Crosby et al.
patent: 4714739 (1987-12-01), Arkles

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