US4066602A
Expired / Lapsed
US
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Abrasion resistant elastomeric composition
Assignee: Individual
•
Filing: 1976-10-12
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Granted: 1978-01-03
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Expires: 1996-10-12
Abstract
Abstract By blending and mixing an elastomeric block copolymer such as polystyrene-polyisoprene-polystyrene block copolymers, finely divided siliceous material such as silica and/or clay having a specific gravity from about 2.40 to about 2.66, and a solvent for the block copolymer, there is obtained a thick, extrudable, workable, paste-like material which, upon application and evaporation of the solvent, sets to an abrasion and peel resistant elastomer. The compositions, which may be further formulated with pigmentary filler, are particularly well suited for repairing the worn heel and toe portions of tennis shoes.
Inventors
- 👤 Michael A. Pellico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:59
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/36; C08K5/00; C08K5/0008; C08K5/0016
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
123 words
Abrasion resistant elastomeric compositions for filling, sealing and coating, comprising: from about 10 to about 50 wt.% of an elastomeric block copolymer selected from the group consisting of polystyrene-polybutadiene-polystyrene copolymer, polystyrene-polyisoprene-polystyrene copolymer and mixtures of said copolymers, wherein the average molecular weight for each polystyrene block is from about 2,000 to about 100,000, and the average molecular weight for each of said polybutadiene and polyisoprene blocks is from about 25,000 to about 1,000,000; from about 10 to about 40 wt.% of silica having a specific gravity from about 2.40 to about 2.66; and a solvent for the elastomeric block copolymer to make up 100 wt.% of the composition, with the concentration of said solvent in said composition being at least about 20 wt.%.
Claim 2
Dependent Claim
123 words
Abrasion resistant elastomeric compositions for filling, sealing and coating, comprising: from about 10 to about 50 wt.% of an elastomeric block copolymer selected from the group consisting of polystyrene-polybutadiene-polystyrene copolymer, polystyrene-polyisoprene-polystyrene copolymer and mixtures of said copolymers, wherein the average molecular weight for each polystyrene block is from about 2,000 to about 100,000, and the average molecular weight for each of said polybutadiene and polyisoprene blocks is from about 25,000 to about 1,000,000; from about 10 to about 40 wt.% of silica having a specific gravity from about 2.40 to about 2.66; and a solvent for the elastomeric block copolymer to make up 100 wt.% of the composition, with the concentration of said solvent in said composition being at least about 20 wt.%.
Claim 3
Dependent Claim
23 words
A composition according to claim 1 wherein the elastomeric block copolymer is present in an amount from about 15 to about 40 wt.%.
Claim 4
Dependent Claim
52 words
A composition according to claim 2 wherein the elastomeric block copolymer is further characterized as follows: the average molecular weight for each polystyrene group is from about 5,000 to about 50,000 and the average molecular weight for each of the polybutadiene and the polyisoprene blocks is from about 50,000 to about 500,000.
Claim 5
Dependent Claim
32 words
A composition according to claim 1 wherein the silica is present in an amount from about 15 to about 30 wt.% and has a specific gravity from about 2.59 to about 2.66.
Claim 6
Dependent Claim
29 words
A composition according to claim 1 which also includes a pigmentary filler in an amount from about 10 to about 20 wt.% based on the weight of the composition.
Claim 7
Dependent Claim
28 words
A composition according to claim 5 wherein the pigmentary filler is a member selected from the group consisting of zinc oxide, titanium dioxide, calcium carbonate and mixtures thereof.
Claim 8
Dependent Claim
22 words
A composition according to claim 5 wherein the pigmentary filler is present in an amount from about 12 to about 15 wt.%.
Claim 9
Dependent Claim
15 words
A composition according to claim 4 wherein silica has a specific gravity of about 2.65.
Claim 10
Independent Claim
140 words
A method for preparing abrasion resistant elastomeric compositions adapted for filling, sealing and coating, which comprises blending and mixing: from about 10 to about 50 wt.% of an elastomeric block copolymer selected from the group consisting of polystyrene-polybutadiene-polystyrene copolymer, polystyrene-polyisoprene-polystyrene copolymer, and mixtures of said copolymers, wherein the average molecular weight for each polystyrene block is from about 2,000 to about 100,000, and the average molecular weight for each of said polybutadiene and polyisoprene blocks is from about 25,000 to about 1,000,000; from about 10 to about 40 wt.% of silica having a specific gravity from about 2.40 to about 2.66; and a solvent for the elastomeric block copolymer to make up 100 wt.% of the composition, with the concentration of said solvent being at least about 20 wt.%; said wt.% being based on the weight of the total composition.
Claim 11
Independent Claim
140 words
A method for preparing abrasion resistant elastomeric compositions adapted for filling, sealing and coating, which comprises blending and mixing: from about 10 to about 50 wt.% of an elastomeric block copolymer selected from the group consisting of polystyrene-polybutadiene-polystyrene copolymer, polystyrene-polyisoprene-polystyrene copolymer, and mixtures of said copolymers, wherein the average molecular weight for each polystyrene block is from about 2,000 to about 100,000, and the average molecular weight for each of said polybutadiene and polyisoprene blocks is from about 25,000 to about 1,000,000; from about 10 to about 40 wt.% of silica having a specific gravity from about 2.40 to about 2.66; and a solvent for the elastomeric block copolymer to make up 100 wt.% of the composition, with the concentration of said solvent being at least about 20 wt.%; said wt.% being based on the weight of the total composition.
Claim 12
Dependent Claim
89 words
A method according to claim 9 wherein: the elastomeric block copolymer is present in amount from about 15 to about 40 wt.% and is further characterized as follows: the average molecular weight for each polystyrene block is from about 5,000 to about 50,000 and the average molecular weight for each of the polybutadiene and polyisoprene blocks is from about 50,000 to about 500,000; and the silica is present in an amount from about 15 to about 30 wt.% and has a specific gravity from about 2.59 to about 2.66.
Claim 13
Dependent Claim
47 words
A method according to claim 9 wherein the blending mix also includes a pigmentary filler selected from the group consisting of zinc oxide, titanium dioxide, calcium carbonate and mixtures thereof in an amount from about 10 to about 20 wt.% based on the weight of the composition.
References Cited (Backward Citations)
US3251905A
Cited
US3792005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |