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US 10,308,799 B2Granted
Fiber reinforced polyvinyl chloride and copolyester compositions and articles made using these compositions
AssigneeEastman Chemical Company
InventorsMarc Alan Strand, Robert Erik Young, Mark Allan Treece
Life of this patent
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Abstract
This disclosure pertains to fiber reinforced polyvinyl chloride compositions which comprise fibrous materials, at least one polyvinyl chloride resins and at least one high Tg copolyester. Processes for producing the novel fiber reinforced polyvinyl chloride compositions as well as articles made using these compositions.
Claims38
A polyvinyl chloride composition comprising a polyvinyl chloride resin, fibrous materials and at least one copolyester which comprises:
- (a) a dicarboxylic acid component comprising:
- (i) about 50 to about 100 mole % of terephthalic acid residues;
- (ii) about 0 to about 50 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms;
- and
- (b) a glycol component comprising:
- (i) about 60 to about 100 mole % of a modifying glycol consisting of 2 to 20 carbon atoms;
- and
- (ii) about 0 to about 40 mole % of a second modifying glycol consisting of 2 to 20 carbon atoms;
- wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %, and wherein the copolyester is amorphous and has a Tg of about 90° C. or higher.
6 more elements
A method of producing a fiber reinforced polyvinyl chloride composition comprising:
- compounding fibrous materials with a miscible admixture of at least one polyvinyl chloride resin and at least one copolyester which comprises:
- (a) a dicarboxylic acid component comprising:
- (i) about 50 to about 100 mole % of terephthalic acid residues;
- (ii) about 0 to about 50 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms;
- and
- (b) a glycol component comprising:
- (i) about 60 to about 100 mole % of a modifying glycol consisting of 2 to 20 carbon atoms;
- and
- (ii) about 0 to about 40 mole % of a second modifying glycol consisting of 2 to 20 carbon atoms;
- wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %;
- to produce a viscous thermoplastic material;
- extruding the compound through a die to produce pellets;
- and
- introducing the pellets into a calendering, extrusion or injection molding process to produce fiber reinforced polyvinyl chloride articles, wherein the copolyester is amorphous and has a Tg of about 90° C. or higher.
11 more elements
A method of producing a fiber reinforced polyvinyl chloride composition comprising:
- compounding fibrous materials with at least one copolyester which comprises:
- (a) a dicarboxylic acid component comprising:
- (i) about 50 to about 100 mole % of terephthalic acid residues;
- (ii) about 0 to about 50 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms;
- and
- (b) a glycol component comprising:
- (i) about 60 to about 100 mole % of a modifying glycol consisting of 2 to 20 carbon atoms;
- and
- (ii) about 0 to about 40 mole % of a second modifying glycol consisting of 2 to 20 carbon atoms;
- wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %;
- to produce a viscous thermoplastic material;
- mixing the compounded composition with a polyvinyl chloride resin to create a polyvinyl chloride composition of about 1 to about 65 percent fibrous materials content based on the total weight of the composition;
- extruding the polyvinyl chloride composition through a die to produce pellets;
- and
- introducing the pellets into a calendering, extrusion or injection molding process to produce fiber reinforced polyvinyl chloride articles, wherein the copolyester is amorphous and has a Tg of about 90° C. or higher.
12 more elements
Dependencies are inferred from the claim text.