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US 5,852,115 AGranted
Recycling of carpet scrap
AssigneeLear Corporation
InventorsDennis C. Young, Stanley J. Chlystek, Robert Malloy, Ivan Rios
Life of this patent
Estimating the term…
Abstract
A polymeric blend formed from recycled carpet scrap and selected compatibilizing agents and/or a poly(ethylene-co-omylacetate) and the products produced from such blend.
Claims8
A substantially homogeneous thermoplastic blend of carpet scrap comprising
- a carpet scrap having a mixture of
- between about 12% and 35% polyamide;
- between about 1% and 3% polyester;
- between about 1% and 3% polypropylene;
- between about 7% and 18% polyethylene;
- between about 15% and 36% poly(ethylene-co-vinyl acetate);
- and
- between about 34% and 60% filler;
- and
- a compatibilizing agent in an amount of up to about 60% for compatibilization of said carpet scrap mixture to form a substantially homogeneous thermoplastic blend, said compatibilizing agent is selected from the group consisting of
- (a) a mixture of polypropylene, and
- a modified polypropylene selected from the group consisting of
- polypropylene having acrylic acid grafted thereon, and a maleic anhydride modified polypropylene;
- and
- (b) a mixture of a maleic anhydride modified poly(ethylene-co-vinyl acetate) and a poly(ethylene-co-vinyl acetate) resin modifier containing
- between about 9% and 36% vinyl acetate.
13 more elements
A substantially homogeneous thermoplastic blend of carpet scrap comprising
- a carpet scrap having a mixture of
- between about 12% and 35% polyamide;
- between about 1% and 3% polyester;
- between about 1% and 3% polypropylene;
- and
- between about 7% and 18% polyethylene;
- and
- a compatibilizing agent in an amount of up to about 60% for compatibilization of said carpet scrap mixture to form a substantially homogeneous thermoplastic blend, said compatibilizing agent is selected from the group consisting of
- (a) a mixture of polypropylene, and
- a modified polypropylene selected from the group consisting of
- polypropylene having acrylic acid grafted thereon, and a maleic anhydride modified polypropylene;
- and
- (b) a mixture of a maleic anhydride modified poly(ethylene-co-vinyl acetate) and a poly(ethylene-co-vinyl acetate) resin modifier containing
- between about 9% and 36% vinyl acetate.
11 more elements
A substantially homogeneous thermoplastic blend of carpet scrap comprising
- a carpet scrap having a mixture of
- between about 12% and 35% polyamide;
- between about 1% and 3% polypropylene;
- between about 7% and 18% polyethylene;
- between about 15% and 36% poly(ethylene-co-vinyl acetate);
- and
- between about 34% and 60% filler;
- and
- a compatibilizing agent in an amount of up to about 60% for compatibilization of said carpet scrap mixture to form a substantially homogeneous thermoplastic blend, said compatibilizing agent is selected from the group consisting of
- (a) a mixture of polypropylene, and
- a modified polypropylene selected from the group consisting of
- polypropylene having acrylic acid grafted thereon, and a maleic anhydride modified polypropylene;
- and
- (b) a mixture of a maleic anhydride modified poly(ethylene-co-vinyl acetate) and a poly(ethylene-co-vinyl acetate) resin modifier containing
- between about 9% and 36% vinyl acetate.
12 more elements
A substantially homogeneous thermoplastic blend of carpet scrap comprising
- a carpet scrap having a mixture of
- between about 12% and 35% polyamide;
- between about 1% and 3% polyester;
- between about 7% and 18% polyethylene;
- between about 15% and 36% poly(ethylene-co-vinyl acetate);
- and
- between about 34% and 60% filler;
- and
- a compatibilizing agent in an amount of up to about 60% for compatibilization of said carpet scrap mixture to form a substantially homogeneous thermoplastic blend, said compatibilizing agent is selected from the group consisting of
- a) a mixture of polypropylene, and
- a modified polypropylene selected from the group consisting of
- polypropylene having acrylic acid grafted thereon, and a maleic anhydride modified polypropylene;
- and
- (b) a mixture of a maleic anhydride modified poly(ethylene-co-vinyl acetate) and a poly(ethylene-co-vinyl acetate) resin modifier containing
- between about 9% and 36% vinyl acetate.
12 more elements
A substantially homogeneous thermoplastic blend of carpet scrap comprising
- a carpet scrap having a mixture of
- between about 12% and 35% polyamide;
- between about 1% and 3% polyester;
- between about 1% and 3% polypropylene;
- between about 15% and 36% poly(ethylene-co-vinyl acetate);
- and
- between about 34% and 60% filler;
- and
- a compatibilizing agent in an amount of up to about 60% for compatibilization of said carpet scrap mixture to form a substantially homogeneous thermoplastic blend, said compatibilizing agent is selected from the group consisting of
- (a) a mixture of polypropylene, and
- a modified polypropylene selected from the group consisting of
- polypropylene having acrylic acid grafted thereon, and a maleic anhydride modified polypropylene;
- and
- (b) a mixture of a maleic anhydride modified poly(ethylene-co-vinyl acetate) and a poly(ethylene-co-vinyl acetate) resin modifier containing
- between about 9% and 36% vinyl acetate.
12 more elements
A substantially homogeneous thermoplastic blend of carpet scrap comprising
- a carpet scrap having a mixture of
- between about 35% and 55% polyamide;
- between about 10% and 15% polyester;
- and
- between about 40% and 45% polyethylene;
- and
- a compatibilizing agent in an amount of up to about 60% for compatibilization of said carpet scrap mixture to form a substantially homogeneous thermoplastic blend, said compatibilizing agent is selected from the group consisting of
- (a) a mixture of polypropylene, and
- a modified polypropylene selected from the group consisting of
- polypropylene having acrylic acid grafted thereon, and a maleic anhydride modified polypropylene;
- and
- (b) a mixture of a maleic anhydride modified poly(ethylene-co-vinyl acetate) and a poly(ethylene-co-vinyl acetate) resin modifier containing
- between about 9% and 36% vinyl acetate.
10 more elements
A substantially homogeneous thermoplastic blend of carpet scrap comprising
- a carpet scrap having a mixture of
- between about 33% and 60% polyester;
- and
- between about 40% and 67% polyethylene;
- and
- a compatibilizing agent in an amount of up to about 60% for compatibilization of said carpet scrap mixture to form a substantially homogeneous thermoplastic blend, said compatibilizing agent is selected from the group consisting of
- (a) a mixture of polypropylene, and
- a modified polypropylene selected from the group consisting of
- polypropylene having acrylic acid grafted thereon, and a maleic anhydride modified polypropylene;
- and
- (b) a mixture of a maleic anhydride modified poly(ethylene-co-vinyl acetate) and a poly(ethylene-co-vinyl acetate) resin modifier containing
- between about 9% and 36% vinyl acetate.
9 more elements
A substantially homogeneous thermoplastic blend of carpet scrap comprising
- a carpet scrap having a mixture of
- between about 15% and 44% polyester;
- between about 33% and 51% polypropylene;
- and
- between about 24% and 34% fiber;
- and
- a compatibilizing agent in an amount of up to about 60% for compatibilization of said carpet scrap mixture to form a substantially homogeneous thermoplastic blend, said compatibilizing agent is selected from the group consisting of
- (a) a mixture of polypropylene, and
- a modified polypropylene selected from the group consisting of
- polypropylene having acrylic acid grafted thereon, and a maleic anhydride modified polypropylene;
- and
- (b) a mixture of a maleic anhydride modified poly(ethylene-co-vinyl acetate) and a poly(ethylene-co-vinyl acetate) resin modifier containing
- between about 9% and 36% vinyl acetate.
10 more elements
Dependencies are inferred from the claim text.