US3884712A
Expired / Lapsed
US
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Process for preparing liquid polymers
Assignee: Zeon Corp
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Filing: 1973-06-29
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Granted: 1975-05-20
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Expires: 1993-06-29
Abstract
Abstract Liquid polymers made predominantly of 1,3-pentadiene and 1,3butadiene, which have an average molecular weight of 300-10,000 and an iodine number of at least 250 and are capable of forming hydrocarbon solvent-insoluble coatings thereof; a process for preparing the liquid polymers; and paint compositions comprising the liquid polymer as the vehicle.
Inventors
- 👤 Tadahiro Go
- 👤 Hiroshi Yaginuma
- 👤 Masaaki Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:05
CPC Classifications
C; C09; C09D; C09D109/00; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C08F236/045
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
84 words
A PROCESS FOR PREPARING A LIQUID POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OFF 300-10,000 AND AN IODINE NUMBERR OF AT LEAST 250 AND BEING CAPABLE OF FORMING HYDROCARBON SOLVENT-INSOLUBLE COATINGS, COMPRISSING COPOLYMERIZING A OONOMERIC MIXTURE CONTAINING 90-50% BY WEIGHT OF 1,3-PENTAD MODIENE AND 10-50% BY WEIGHT OF 1,3-BUTADIENE IN THE PRESENCE OF A HOMOGENIZABLE FRIEDEL-CRAFTS TYPE CATALYST SELECTED FROM THE GROUP CONSISTING OF BORON TRIFLUORIDE AND COMPLEXES THEREOF, TIN TETRACHLORIDE, FERRIC CHLORIDE, TITANIUM TETRACHLORIDE, SOLUBLIZED ALUMINUM CHLORIDE, AKYALUMINUM DICHLORIDE, SULPHURIC ACID AND HYDROGEN FLUORIDE.
Claim 2
Dependent Claim
84 words
A PROCESS FOR PREPARING A LIQUID POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OFF 300-10,000 AND AN IODINE NUMBERR OF AT LEAST 250 AND BEING CAPABLE OF FORMING HYDROCARBON SOLVENT-INSOLUBLE COATINGS, COMPRISSING COPOLYMERIZING A OONOMERIC MIXTURE CONTAINING 90-50% BY WEIGHT OF 1,3-PENTAD MODIENE AND 10-50% BY WEIGHT OF 1,3-BUTADIENE IN THE PRESENCE OF A HOMOGENIZABLE FRIEDEL-CRAFTS TYPE CATALYST SELECTED FROM THE GROUP CONSISTING OF BORON TRIFLUORIDE AND COMPLEXES THEREOF, TIN TETRACHLORIDE, FERRIC CHLORIDE, TITANIUM TETRACHLORIDE, SOLUBLIZED ALUMINUM CHLORIDE, AKYALUMINUM DICHLORIDE, SULPHURIC ACID AND HYDROGEN FLUORIDE.
Claim 3
Dependent Claim
108 words
A process for preparing a liquid polymer having an average molecular weight of 300-10,000 and an iodine number of at least 250 and capable of forming hydrocarbon solvent-insoluble coatings, comprising copolymerizing a monomeric mixture containing (A) at least 80% by weight of a mixture of 90-50 parts by weight of 1,3-pentadiene and 10-50 parts by weight of butadiene and (B) up to 20% by weight of at least one other olefin copolymerizable with the components of (A) in the presence of a homogenizable Friedel-Crafts type catalyst selected from the group consisting of tin tetrachloride, ferric chloride, titanium tetrachloride, solubilized aluminum chloride, alkylaluminum dichloride, sulphuric acid and hydrogen fluoride.
Claim 4
Dependent Claim
108 words
A process for preparing a liquid polymer having an average molecular weight of 300-10,000 and an iodine number of at least 250 and capable of forming hydrocarbon solvent-insoluble coatings, comprising copolymerizing a monomeric mixture containing (A) at least 80% by weight of a mixture of 90-50 parts by weight of 1,3-pentadiene and 10-50 parts by weight of butadiene and (B) up to 20% by weight of at least one other olefin copolymerizable with the components of (A) in the presence of a homogenizable Friedel-Crafts type catalyst selected from the group consisting of tin tetrachloride, ferric chloride, titanium tetrachloride, solubilized aluminum chloride, alkylaluminum dichloride, sulphuric acid and hydrogen fluoride.
Claim 5
Dependent Claim
49 words
The process according to claim 2, wherein the monomeric mixture containing (A) comprises at least 90% by weight of said mixture of 90-50 parts by weight of 1,3-pentadiene and 10-50 parts by weight of 1,3-butadiene and (B) up to 10% by weight of at least one said other olefin.
Claim 6
Dependent Claim
23 words
The process according to claim 1, wherein the Friedel-Crafts type catalyst is used in amounts of 0.05-5% by weight of the total monomers.
Claim 7
Dependent Claim
18 words
The process according to claim 1, wherein the copolymerization is effected at temperatures of from -80* to 150*C.
Claim 8
Dependent Claim
16 words
The process according to claim 1, wherein the copolymerization is effected in an inert hydrocarbon solvent.
Claim 9
Dependent Claim
25 words
The process according to claim 2, wherein the other olefin is selected from the group consisting of butene-1, isobutene, pentene-1, 2-methylbutene-1, 2-methylbutene-2, isoprene and cyclopentene.
Claim 10
Dependent Claim
41 words
A liquid polymer comprising 90-50% by weight of 1,3-pentadiene and 10-50% by weight of 1,3-butadiene, the polymer having a number average molecular weight of 300-10,000 and an iodine number of at least 250 and being capable of forming hydrocarbon solvent-insoluble coatings.
Claim 11
Dependent Claim
41 words
A liquid polymer comprising 90-50% by weight of 1,3-pentadiene and 10-50% by weight of 1,3-butadiene, the polymer having a number average molecular weight of 300-10,000 and an iodine number of at least 250 and being capable of forming hydrocarbon solvent-insoluble coatings.
Claim 12
Dependent Claim
79 words
A liquid polymer comprising (A) at least 80% by weight of a mixture of 90-50 parts by weight of 1,3-pentadiene and 10-50 parts by weight of 1,3-butadiene and (B) up to 20% by weight of at least one member selected from the group consisting of butene-1, isobutene, pentene-1, 2-methybutene-1, 2-methylbutene-2, isoprene and cyclopentene, the polymer having a number average molecular weight of 300-10,000 and an iodine number of at least 250 and being capable of forming hydrocarbon solvent-insoluble coatings.
Claim 13
Dependent Claim
79 words
A liquid polymer comprising (A) at least 80% by weight of a mixture of 90-50 parts by weight of 1,3-pentadiene and 10-50 parts by weight of 1,3-butadiene and (B) up to 20% by weight of at least one member selected from the group consisting of butene-1, isobutene, pentene-1, 2-methybutene-1, 2-methylbutene-2, isoprene and cyclopentene, the polymer having a number average molecular weight of 300-10,000 and an iodine number of at least 250 and being capable of forming hydrocarbon solvent-insoluble coatings.
Claim 14
Dependent Claim
45 words
A liquid polymer according to claim 9, wherein (A) comprises at least 90% by weight of said mixture of 90-50 parts by weight of 1,3-pentadiene and 10-50 parts by weight of 1,3-butadiene and (B) up to 10% by weight of at least said one 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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |