US4405730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl chloride shoe sole composition
Assignee: BP Performance Polymers Inc
•
Filing: 1982-06-22
•
Granted: 1983-09-20
•
Expires: 2002-06-22
Abstract
Abstract This invention covers a shoe sole composition compounded from polyvinyl chloride and organic cellulosic flock, and the shoe sole product produced therefrom.
Inventors
- 👤 Arnold Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:45
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/0036; A43B3/0078; A43B3/0084; A43B13/00; A43B13/02; A43B13/04; C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; Y; Y10; Y10S; Y10S36/00; Y10S36/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
91 words
A polyvinyl chloride based shoe sole formed from a molding composition, said molding composition having as a primary feature a dull non-glossy surface appearance, consisting of a polyvinyl chloride homopolymer resin containing essentially from 5 to 30 parts of a natural organic cellulosic fibrous flock homogeneously dispersed therein having an average length of from about 30 to about 300 microns, and from about 75 to about 100 parts of plasticizer and from about 0.5 to about 1.5 parts of a stabilizer, all based upon 100 parts of polyvinyl chloride homopolymer resin.
Claim 2
Dependent Claim
91 words
A polyvinyl chloride based shoe sole formed from a molding composition, said molding composition having as a primary feature a dull non-glossy surface appearance, consisting of a polyvinyl chloride homopolymer resin containing essentially from 5 to 30 parts of a natural organic cellulosic fibrous flock homogeneously dispersed therein having an average length of from about 30 to about 300 microns, and from about 75 to about 100 parts of plasticizer and from about 0.5 to about 1.5 parts of a stabilizer, all based upon 100 parts of polyvinyl chloride homopolymer resin.
Claim 3
Dependent Claim
36 words
The polyvinyl chloride based shoe sole according to claim 1 in which the organic cellulosic fibrous flock of the molding composition is selected from the group consisting of cotton flock and rayon flock, and mixtures thereof.
Claim 4
Dependent Claim
31 words
The polyvinyl chloride based shoe sole according to claim 2 in which the average fiber length of said flock in the molding composition is from about 50 to about 60 microns.
Claim 5
Dependent Claim
25 words
The polyvinyl chloride based shoe sole according to claim 1 in which said plasticizer in the molding composition is higher alcohol phthalates and mixtures thereof.
Claim 6
Dependent Claim
25 words
The polyvinyl chloride based shoe sole according to claim 4 in which said higher alcohol phthalate plasticizer in the molding composition is di-2-ethyl hexyl phthalate.
Claim 7
Dependent Claim
17 words
The polyvinyl chloride based shoe sole according to claim 1 in which said composition contains a lubricant.
Claim 8
Dependent Claim
20 words
The polyvinyl chloride based shoe sole according to claim 6 in which said lubricant in the composition is stearic acid.
Claim 9
Dependent Claim
36 words
The polyvinyl chloride based shoe sole according to claim 1 in which said molding composition contains from about 1 to about 20 parts of an inorganic pigment per 100 parts of polyvinyl chloride polymeric material used.
Claim 10
Dependent Claim
31 words
The polyvinyl chloride based shoe sole according to claim 8 in which said molding composition contains an inorganic pigment which includes a blend of orange molybdate, chrome yellow, and carbon black.
Claim 11
Dependent Claim
36 words
The polyvinyl chloride based shoe sole according to claim 1 in which said molding composition contains from about 5 to about 20 parts of a hydrocarbon extender per 100 parts of polyvinyl chloride polymeric material used.
Claim 12
Dependent Claim
29 words
The polyvinyl chloride based shoe sole according to claim 10 in which the hydrocarbon extender in said molding composition is a mixture of hydrocarbon cuts, mostly naphthane in nature.
Claim 13
Dependent Claim
37 words
The polyvinyl chloride based shoe sole according to claim 1 in which said molding composition contains from about 2 to about 8 parts of an epoxidized soybean oil per 100 parts of polyvinyl chloride polymeric material used.
Claim 14
Dependent Claim
35 words
The polyvinyl chloride based shoe sole according to claim 1 wherein the stabilizer in said molding composition is at least one member selected from the group consisting of barium, cadmium, and zinc liquids and powders.
Claim 15
Dependent Claim
18 words
The polyvinyl chloride based shoe sole of claim 1 in which said sole includes a unitary heel portion.
References Cited (Backward Citations)
US1409301A
Cited
US2039529A
Cited
US2638457A
Cited
US2572184A
Cited
US3959895A
Cited
US4133795A
Cited
US4250064A
Cited
US4244847A
Cited
US4248743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |