US3879331A
Expired / Lapsed
US
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Polybutadiene coating compositions
Assignee: Valspar Corp
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Filing: 1974-06-19
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Granted: 1975-04-22
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Expires: 1994-06-19
Abstract
Abstract Can-coating and lubricant compositions containing a polybutadiene, polyethylene, a polyvinylalkyl ether and an organic liquid carrier.
Inventors
- 👤 David J Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:46
CPC Classifications
C; C09; C09D; C09D109/00; C09D123/00; C09D123/02; C09D123/04; C09D123/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
60 words
IN A LUBRICANT CONCENTRATE COMPRISING A. PARTICULATE POLYETHYLENE; B. A POLYBUTADIENE; AND C. AN ORGANIC LIQUID CARRIER WHICH IS A SOLVENT FOR (B); THE IMPROVEMENT CONSISTING ESSENTIALLY OF THE PRESENCE IN SAID CONCENTRATE OF FROM ABOUT 0.025 THROUGH ABOUT 2 PERCENT, BY WEIGHT OF THE TOTAL SOLIDS IN THE CONCENTRATE, OF A POLYVINYL ETHER HAVING RECURRING UNITS OF THE STRUCTURE
Claim 2
Dependent Claim
60 words
IN A LUBRICANT CONCENTRATE COMPRISING A. PARTICULATE POLYETHYLENE; B. A POLYBUTADIENE; AND C. AN ORGANIC LIQUID CARRIER WHICH IS A SOLVENT FOR (B); THE IMPROVEMENT CONSISTING ESSENTIALLY OF THE PRESENCE IN SAID CONCENTRATE OF FROM ABOUT 0.025 THROUGH ABOUT 2 PERCENT, BY WEIGHT OF THE TOTAL SOLIDS IN THE CONCENTRATE, OF A POLYVINYL ETHER HAVING RECURRING UNITS OF THE STRUCTURE
Claim 3
Dependent Claim
60 words
In a lubricant concentrate comprising A. particulate polyethylene; B. a polybutadiene; and C. an organic liquid carrier which is a solvent for (B); the improvement consisting essentially of the presence in said concentrate of from about 0.025 through about 2 percent, by weight of the total solids in the concentrate, of a polyvinyl ether having recurring units of the structure
Claim 4
Dependent Claim
60 words
In a lubricant concentrate comprising A. particulate polyethylene; B. a polybutadiene; and C. an organic liquid carrier which is a solvent for (B); the improvement consisting essentially of the presence in said concentrate of from about 0.025 through about 2 percent, by weight of the total solids in the concentrate, of a polyvinyl ether having recurring units of the structure
Claim 5
Dependent Claim
20 words
The concentrate of claim 1 wherein the polyvinyl ether has a molecular weight of from about 20,000 through about 25,000.
Claim 6
Dependent Claim
25 words
The concentrate of claim 2 wherein the R substituent of the polyvinyl ether is isobutyl and the ester has a molecular weight of about 25,000.
Claim 7
Dependent Claim
61 words
In a liquid coating composition comprising A. particulate polyethylene; B. a polybutadiene; and C. an organic liquid carrier which is a solvent for (B); the improvement consisting essentially of the presence in said composition of from about 0.005 through about 0.2 percent, by weight of the total solids in the composition of a polyvinyl ether having recurring units of the structure
Claim 8
Dependent Claim
61 words
In a liquid coating composition comprising A. particulate polyethylene; B. a polybutadiene; and C. an organic liquid carrier which is a solvent for (B); the improvement consisting essentially of the presence in said composition of from about 0.005 through about 0.2 percent, by weight of the total solids in the composition of a polyvinyl ether having recurring units of the structure
Claim 9
Dependent Claim
19 words
The composition of claim 4 wherein the polyvinyl ether has a molecular weight of about 20,000 through about 25,000.
Claim 10
Dependent Claim
25 words
The composition of claim 5 wherein the R substituent of the polyvinyl ether is isobutyl and the ether has a molecular weight of about 25,000.
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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |