US3864468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activated polymer materials and process for making same
Assignee: Herculite Protective Fabrics Corp
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Filing: 1972-05-19
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Granted: 1975-02-04
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Expires: 1992-05-19
Abstract
Abstract This invention concerns non-porous, polymeric articles having active properties, and methods for producing such articles. Plastic, rubber, or other natural and synthetic polymeric articles are provided with active chemical and/or physical properties, such as, antibacterial, antifungal, pesticidal, insecticidal, animal repellent, odorous, antistatic, electrically conductive or other properties or combinations of properties, by applying to a surface of the article selected activating agents which migrate or move throughout the body of the article to impart an effective level of activity throughout the article and/or on a surface other than the one to which the activating agents have been applied.
Inventors
- 👤 Seymour Hyman
- 👤 Bruce S Bernstein
- 👤 Ramesh Kapoor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:12
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/10; B32B27/00; B32B15/00; B32B15/04; B32B15/08; B32B15/085; B32B15/14; C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0058; B32B2327/00; B32B2327/06; B32B2327/12; B32B2327/18; B32B2367/00; B32B2369/00; B32B2375/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
107 words
A POLYMERIC ARTICLE HAVING INSECTICIDAL PROPERTIES COMPRISING A SOLID, NON-POROUS, POLYMERIC SUBSTRATE, AND A SOLID, NON-POROUS LAYER OF A POLYMERIC COMPOSITION ADHERENTLY APPLIED TO AT LEAST ONE SURFACE OF SAID SUBSTRATE, SAID COMPOSITION CONTAINING AT LEAST ONE INSECTICIDAL ACTIVATING AGENT DISTRIBUTED WITHIN SAID POLYMERIC COMPOSITION AND CAPABLE OF MIGRATING FROM SAID LAYER INTO AND THROUGHOUT SAID SUBSTRATE, SAID AGENT BEING PRESENT IN SAID LAYER IN SUFFICIENT AMOUNT SO THAT UPON MIGRATION FROM SAID LAYER INTO SAID SUBSTRATE AN EFFECTIVE LEVEL OF INSECTICIDAL ACTIVITY IS PROVIDED THROUGHOUT SAID SUBSTRATE, AND ON AT LEAST ONE OTHER SURFACE OF SAID SUBSTRATE WHICH IS NOT IN DIRECT CONTACT WITH SAID LAYER.
Claim 2
Dependent Claim
107 words
A POLYMERIC ARTICLE HAVING INSECTICIDAL PROPERTIES COMPRISING A SOLID, NON-POROUS, POLYMERIC SUBSTRATE, AND A SOLID, NON-POROUS LAYER OF A POLYMERIC COMPOSITION ADHERENTLY APPLIED TO AT LEAST ONE SURFACE OF SAID SUBSTRATE, SAID COMPOSITION CONTAINING AT LEAST ONE INSECTICIDAL ACTIVATING AGENT DISTRIBUTED WITHIN SAID POLYMERIC COMPOSITION AND CAPABLE OF MIGRATING FROM SAID LAYER INTO AND THROUGHOUT SAID SUBSTRATE, SAID AGENT BEING PRESENT IN SAID LAYER IN SUFFICIENT AMOUNT SO THAT UPON MIGRATION FROM SAID LAYER INTO SAID SUBSTRATE AN EFFECTIVE LEVEL OF INSECTICIDAL ACTIVITY IS PROVIDED THROUGHOUT SAID SUBSTRATE, AND ON AT LEAST ONE OTHER SURFACE OF SAID SUBSTRATE WHICH IS NOT IN DIRECT CONTACT WITH SAID LAYER.
Claim 3
Dependent Claim
69 words
The article of claim 1 wherein the amount of activating agent in said layer is in excess of the amount needed to provide an initial effective level of insecticidal activity throughout said article, said excess amount of said agent providing a reservoir of said agent in said layer for the maintenance of an effective level of insecticidal activity in said article by replenishment of said agent from said reservoir.
Claim 4
Dependent Claim
46 words
The article of claim 1 wherein said substrate is a material selected from the group consisting of a lower polyolefin, polyvinyl chloride, polyvinyl flouride, polychlorotrifluoroethylene, polyester urethane, polycarbonate, polyethylene terephthalate, polyvinylidene chloride, polybenzimidazole, ethylene-acrylic acid copolymer ionomer, cellulose acetate, regenerated cellulose, polyamide, and multilayer laminated materials.
Claim 5
Dependent Claim
22 words
The article of claim 1 further comprising a second material bonded to said layer on the surface not contacted by said substrate.
Claim 6
Dependent Claim
38 words
The article of claim 1 wherein said second material is selected from the group consisting of metal, wood, plastic, particle board, paper, textile, asbestos, multilayer laminated elements, and elements which serve as a barrier to said activating agent.
Claim 7
Dependent Claim
22 words
The article of claim 1 wherein said insecticidal activating agent comprises a material selected from the group consisting of chlordane and pyrethrins.
Claim 8
Dependent Claim
22 words
The article of claim 2 wherein said insecticidal activating agent comprises a material selected from the group consisting of chlordane and pyrethrins.
Claim 9
Dependent Claim
22 words
The article of claim 3 wherein said insecticidal activating agent comprises a material selected from the group consisting of chlordane and pyrethrins.
Claim 10
Dependent Claim
22 words
The article of claim 4 wherein said insecticidal activating agent comprises a material selected from the group consisting of chlordane and pyrethrins.
Claim 11
Dependent Claim
22 words
The article of claim 5 wherein said insecticidal activating agent comprises a material selected from the group consisting of chlordane and pyrethrins.
References Cited (Backward Citations)
US2899771A
Cited
US2315772A
Cited
US2911756A
Cited
US2808679A
Cited
US3295246A
Cited
US3705938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |