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US 4,229,338 AGranted
Suede-look shoe soles
AssigneeShell Oil Company
InventorsDavid R. Hansen, Glenn R. Himes
Life of this patent
Estimating the term…
Abstract
A footwear composition having a simulated suede appearance is prepared by melt blending a monoalkenyl arene/diene block copolymer, oil, silica filler, styrene polymer, pigment and synthetic fiber at a temperature below the melting point of the fiber. The synthetic fiber is preferably selected from the group consisting of polyamide fibers, polyester fibers, acrylic fibers, and mixtures thereof.
Claims8
A footwear composition having a simulated suede appearance comprising:
- (a) 100 parts by weight of a block copolymer having at least two monoalkenyl arene polymer end blocks A and at least one elastomeric conjugated diene mid block B, each block A having an average molecular weight between about 5,000 and about 125,000 and each block B having an average molecular weight between about 15,000 and about 350,000, said blocks A comprising 8-65% by weight of the copolymer;
- (b) about 5 to about 125 parts by weight of a styrene polymer;
- (c) about 5 to about 175 parts by weight of a hydrocarbon extending oil;
- (d) about 2 to about 150 parts by weight of a finely divided silica filler;
- (e) about 0.1 to about 10 parts by weight of a pigment;
- and
- (f) about 5 to about 50 parts by weight of a synthetic fiber selected from the group consisting of polyamide fibers, polyester fibers, acrylic fibers, and mixtures thereof;
- wherein the various components are melt blended at a temperature below the melting point of said synthetic fiber.
5 more elements
Dependencies are inferred from the claim text.