Patent US3303086A successfully refreshed from Google Patents.
US3303086A
Expired / Lapsed
US
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Foamed polyurethane laminate and the adhesive composition
Assignee: Hexion Inc
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Filing: 1963-04-29
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Granted: 1967-02-07
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Demers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:04
CPC Classifications
C; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/062; C09J133/064; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/28; C08L2666/54; C08L61/00; C08L61/20; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249985; Y10T428/249987; Y10T428/249991; Y10T428/31504; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
124 words
AN ADHESIVE COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS EMULSION OF A COPOLYMER OF A C1-C4 ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACIDS WITH 0.5% OF ITS WEIGHT OF AN ALPHAUNSATURATED WITH WATER SOLUBLE ACID, AN ACIDIC WATER SOLUBLE CURING AGENT IN PROPORTION TO ESTBLISH THE PH OF SAID EMULSION AT NOT ABOVE 8 AS COMPOUNDED AND NOT ABOVE 7 DURING THE SUBSEQUENT HEATING TO DURE SAID COPOLYMER, A MELAMINE-FORMALDEHYDE CONDENSATE RECTED WITH SAID COPOLYMER, AND STABILIZER POWDER, THE STABILIZER POWDER BEING IN THE PROPORTION OF APPROXIMATELY 20-65 PARTS BY WEIGHT FOR 100 PARTS OF SAID ESTER, FINELY DIVIDED, SUBSTANTIALLY FREE OF WATER SOLUBLES AND SELECTED FROM THE GROUP CONSISTING OF CLAY, DIATOMACEOUS EARTH, FULLER''S EARTH AND CELLULOSE.
Claim 2
Dependent Claim
124 words
AN ADHESIVE COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS EMULSION OF A COPOLYMER OF A C1-C4 ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACIDS WITH 0.5% OF ITS WEIGHT OF AN ALPHAUNSATURATED WITH WATER SOLUBLE ACID, AN ACIDIC WATER SOLUBLE CURING AGENT IN PROPORTION TO ESTBLISH THE PH OF SAID EMULSION AT NOT ABOVE 8 AS COMPOUNDED AND NOT ABOVE 7 DURING THE SUBSEQUENT HEATING TO DURE SAID COPOLYMER, A MELAMINE-FORMALDEHYDE CONDENSATE RECTED WITH SAID COPOLYMER, AND STABILIZER POWDER, THE STABILIZER POWDER BEING IN THE PROPORTION OF APPROXIMATELY 20-65 PARTS BY WEIGHT FOR 100 PARTS OF SAID ESTER, FINELY DIVIDED, SUBSTANTIALLY FREE OF WATER SOLUBLES AND SELECTED FROM THE GROUP CONSISTING OF CLAY, DIATOMACEOUS EARTH, FULLER''S EARTH AND CELLULOSE.
Claim 3
Dependent Claim
35 words
AN ARTICLE OF MANUFACTURE COMPRISING A FOAMED SHEET OF POLYURETHANE PLASTIC, A VAPOR PENETRABLE BACKING MEMBER, AND A DRIED AND CURED FILM OF THE ADHESIVE OF CLAIM 1 ADHEREING SAID SHEET TO THE BACKING MEMBER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |