Method of cleaning using a water-washable tacky elastomer
Abstract
Abstract Upon a base is a film of water-washable tacky elastomer, having a modulus of elasticity (Young''s modulus) of about 1 to 100 p.s.i., and an internal viscosity of about 1000 to 20,000 poises or expressed in minutes by another test method, of from 0.1 to 800 minutes. The elastomer is a hydrophobic, water-insoluble elastic solid with low creep, typically made from such materials as polyvinyl chloride, copolymer of vinyl chloride and vinyl acetate, polyurethane, or polysulfide; often a plasticizer compatible therewith is employed to obtain the desired physical qualities. The film coated base is usable to embed solid particles such as dirt, dust, and hair in the film by contacting the film with the article to be cleaned. Water washing is used to remove the embedded particles from the elastomer without substantially affecting its tackiness.
Inventors
- 👤 H Amos
- 👤 E Strickland
Bibliographic Details
Claims Analysis
Total Claims: 5References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |