High impact nylon composition
AssigneePlastic Specialties and Technologies, Inc.
InventorKhemchand J. Nangrani
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Abstract
High impact nylon molding compounds are provided by maleating an ethylene-propylene copolymer at an elevated temperature in the presence of an organic peroxide initiator and thereafter grafting the maleated adduct thus prepared onto the free amino end group of a nylon polymer, such as nylon-6 or nylon-66, at an elevated temperature, illustratively by extrusion. A reinforced composite is obtained by extrusion-compounding the grafted nylon polymer with glass fiber.
Claims25
A fiber-reinforced molding composition comprising a grafted polyamide resin and a fiber-reinforcing material, said grafted polyamide resin obtained by heating a polyamide resin with an adduct of a polyethylene polymer and an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid compound.
A method of making a fiber-reinforced molding composition comprising
- reacting a polyethylene polymer with an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid or a derivative thereof at an elevated temperature and in the presence of an organic peroxide initiator to produce an adduct of said polyethylene polymer,
- intimately mixing said adduct with a polyamide under the action of heat to make a grafted polyamide resin, and
- compounding said grafted polyamide with a fiber-reinforcing material to make said fiber-reinforced molding composition.
Dependencies are inferred from the claim text.