Patent US3011985A successfully refreshed from Google Patents.
US3011985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl acetate and glue compositions
Assignee: Hexion Inc
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Filing: 1957-01-22
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Granted: 1961-12-05
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Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 Breslouf Morris
- 👤 Frederick W Stenuis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:44
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08; C09; C09J; C09J131/00; C09J131/02; C09J131/04; C08L; C08L2666/00; C08L2666/02; C08L2666/26; C08L2666/54; C08L89/00; C08L89/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
IN MAKING AN ADHESIVE COMPOSITION THE PROCESS WHICH COMPRISES FORMING AN AQUEOUS EMULSION OF 100 PARTS BY WEIGHT OF VINYL ACETATE, 5-20 PARTS OF ANIMAL GLUE, ABOUT 0.1-1 PART OF AN INITIATOR OF POLYMERIZATION OF VINYL ACETATE, AN ALKALI METAL ALKALI IN AMOUNT TO ESTABLISH THE PH OF THE EMULSION AT ABOUT 3.5-5.5, AND A GLUE LIQUIFYING AGENT IN THE PROPORTION OF ABOUT 10-50 PARTS FOR 100 PARTS OF THE GLUE, WARMING THE EMULSION AT A TEMPERATURE WITHIN THE RANGE APPROXIMATELY 50*-100* C. UNTIL THE VINYL ACETATE IS POLYMERIZED TO POLYVINYL ACETATE, AND THEN ADMIXING INTO THE COMPOSITION SO FORMED AN ADDITIONAL PORTION OF THE SAID GLUE IN AMOUNT TO MAKE THE TOTAL GLUE USED NOT MORE THAN ABOUT 50 PARTS, THE GLUE AT NO TIME HAVING BEEN HEATED TO A TEMPERATURE SUBSTANTIALLY ABOVE 100*C.
Claim 2
Dependent Claim
135 words
IN MAKING AN ADHESIVE COMPOSITION THE PROCESS WHICH COMPRISES FORMING AN AQUEOUS EMULSION OF 100 PARTS BY WEIGHT OF VINYL ACETATE, 5-20 PARTS OF ANIMAL GLUE, ABOUT 0.1-1 PART OF AN INITIATOR OF POLYMERIZATION OF VINYL ACETATE, AN ALKALI METAL ALKALI IN AMOUNT TO ESTABLISH THE PH OF THE EMULSION AT ABOUT 3.5-5.5, AND A GLUE LIQUIFYING AGENT IN THE PROPORTION OF ABOUT 10-50 PARTS FOR 100 PARTS OF THE GLUE, WARMING THE EMULSION AT A TEMPERATURE WITHIN THE RANGE APPROXIMATELY 50*-100* C. UNTIL THE VINYL ACETATE IS POLYMERIZED TO POLYVINYL ACETATE, AND THEN ADMIXING INTO THE COMPOSITION SO FORMED AN ADDITIONAL PORTION OF THE SAID GLUE IN AMOUNT TO MAKE THE TOTAL GLUE USED NOT MORE THAN ABOUT 50 PARTS, THE GLUE AT NO TIME HAVING BEEN HEATED TO A TEMPERATURE SUBSTANTIALLY ABOVE 100*C.
Claim 3
Dependent Claim
99 words
AN ADHESIVE COMPRISING THE PRODUCT OF POLYMERIZING 100 PARTS BY WEIGHT OF VINYL ACETATE IN AN AQUEOUS EMULSION IN CONTACT WITH AN ALKALI METAL ALKALI IN PROPORTION TO ESTABLISH THE PH OF THE EMULSION AT ABOUT 3.5-5.5, 5-20 PARTS OF ANIMAL GLUE, AND ABOUT 0.1-1 PART OF AN INITIATOR OF VINYL ACETATE POLYMERIZATION AT A TEMPERATURE OF ABOUT 50*-100*C. AND ADDITIONAL ANIMAL GLUE ADMIXED INTO THE EMULSION SUBSEQUENT TO THE SAID POLYMERIZING IN PROPORTION TO MAKE THE TOTAL GLUE USED NOT MORE THAN 50 PARTS, THE GLUE AT NO TIME HAVING BEEN HEATED TO A TEMPERATURE SUBSTANTIALLY ABOVE 100*C.
Claim 4
Dependent Claim
99 words
AN ADHESIVE COMPRISING THE PRODUCT OF POLYMERIZING 100 PARTS BY WEIGHT OF VINYL ACETATE IN AN AQUEOUS EMULSION IN CONTACT WITH AN ALKALI METAL ALKALI IN PROPORTION TO ESTABLISH THE PH OF THE EMULSION AT ABOUT 3.5-5.5, 5-20 PARTS OF ANIMAL GLUE, AND ABOUT 0.1-1 PART OF AN INITIATOR OF VINYL ACETATE POLYMERIZATION AT A TEMPERATURE OF ABOUT 50*-100*C. AND ADDITIONAL ANIMAL GLUE ADMIXED INTO THE EMULSION SUBSEQUENT TO THE SAID POLYMERIZING IN PROPORTION TO MAKE THE TOTAL GLUE USED NOT MORE THAN 50 PARTS, THE GLUE AT NO TIME HAVING BEEN HEATED TO A TEMPERATURE SUBSTANTIALLY ABOVE 100*C.
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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |