US3899547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing vinyl chloride compositions containing butadiene and butadiene-styrene copolymers
Assignee: Kureha Corp
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Filing: 1974-01-04
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Granted: 1975-08-12
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Expires: 1994-01-04
Abstract
Abstract Vinyl chloride polymer compositions of improved transparency, impact strength, and workability obtained by blending a substantial quantity of vinyl chloride polymers containing vinyl chloride as the principal constituent thereof and a supplemental quantity of a resin produced from post-polymerization of a monomer mixture of styrene, methylmethacrylate, and a crosslinking agent on coagulated particles of a latex containing butadiene polymer or butadiene-styrene copolymer.
Inventors
- 👤 Yasuo Amagi
- 👤 Haruhiko Yusa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:43
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08F279/06; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L51/00; C08L51/04; Y; Y10; Y10S; Y10S525/00; Y10S525/932
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
143 words
A PROCESS FOR PRODUCING A VINYL COMPOSITION OF HIGH TRANSPARENCY, HEAT-STABILITY, AND IMPACT STRENGTH, WHICH COMPRISES: A. ADDING TO 100 PARTS BY WEIGHT OF A SOLID CONTENT OF A LATEX CONTAINING FROM 40 TO 70 PARTS BY WEIGHT OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF BUTADIENCE POLYMERS AND BUTADIENE-STYRENE COPOLYMERS, WITH BUTADIENCE AS THE PRINCIPAL CONSTITUENT AND A FATTY ACID SURFACTANT HAVING 10 TO 20 CARBON ATOMS AS AN EMULSIFIER FOR PREPARING THE LATEX, 0.05-0.5 PARTS BY WEIGHT OF A DIPERSION STABILIZER SELECTED FROM THE GROUP CONSISTING OF DIOCTYL ESTER SULPHOSUCCINATE AND ALKYLBENZENE SULPHONATE, B. ADDING TO SAID STABILIZED LATEX AS ACIDIC SUBSTANCE TO PRODUCE COAGULATED PARTICLES HAVING AVERAGE PARTICLE SIZE OF FROM 0.2 TO 0.5 MICRON, C. DIVIDING A PLASTIC COMPONENT TO BE POST-POLYMERIZED IN A PROPORTION OF FROM 60 TO 30 PARTS BY WEIGHT WITH SAID COAGULATED PARTICLES INTO
Claim 2
Dependent Claim
143 words
A PROCESS FOR PRODUCING A VINYL COMPOSITION OF HIGH TRANSPARENCY, HEAT-STABILITY, AND IMPACT STRENGTH, WHICH COMPRISES: A. ADDING TO 100 PARTS BY WEIGHT OF A SOLID CONTENT OF A LATEX CONTAINING FROM 40 TO 70 PARTS BY WEIGHT OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF BUTADIENCE POLYMERS AND BUTADIENE-STYRENE COPOLYMERS, WITH BUTADIENCE AS THE PRINCIPAL CONSTITUENT AND A FATTY ACID SURFACTANT HAVING 10 TO 20 CARBON ATOMS AS AN EMULSIFIER FOR PREPARING THE LATEX, 0.05-0.5 PARTS BY WEIGHT OF A DIPERSION STABILIZER SELECTED FROM THE GROUP CONSISTING OF DIOCTYL ESTER SULPHOSUCCINATE AND ALKYLBENZENE SULPHONATE, B. ADDING TO SAID STABILIZED LATEX AS ACIDIC SUBSTANCE TO PRODUCE COAGULATED PARTICLES HAVING AVERAGE PARTICLE SIZE OF FROM 0.2 TO 0.5 MICRON, C. DIVIDING A PLASTIC COMPONENT TO BE POST-POLYMERIZED IN A PROPORTION OF FROM 60 TO 30 PARTS BY WEIGHT WITH SAID COAGULATED PARTICLES INTO
Claim 3
Dependent Claim
28 words
FROM 50 TO 90 PERCENT BY WEIGHT OF A FIRST PORTION WHICH IS A MONOMER MIXTURE OF STYRENE AND METHYL METHACRYLATE WITH STRENE AS ITS PRINCIPAL CONSTITUENT AND
Claim 4
Dependent Claim
28 words
FROM 50 TO 90 PERCENT BY WEIGHT OF A FIRST PORTION WHICH IS A MONOMER MIXTURE OF STYRENE AND METHYL METHACRYLATE WITH STRENE AS ITS PRINCIPAL CONSTITUENT AND
Claim 5
Dependent Claim
140 words
FROM 50 TO 10 PERCENT BY WEIGHT OF A SECOND PORTION SELECTED FROM THE GROUP CONSISTING OF METHYLMETHACRYLATE MONOMER AND MONOMER MIXTURE OF STYRENE AND METHYL METHACRYLATE WITH METHYL METHACRYLATE AS THE PRINCIPAL CONSTITUENT, D. CAUSING POST-POLYMERIZATION OF SAID FIRST PORTION OF THE PLASTIC COMPONENT WITH SAID COAGULATED PARTICLES IN THE PRESENCE OF FROM 0.01 TO TO 5 PARTS BY WEIGHT OF A CROSSLINKING AGENT, E. THEN CAUSING POST-POLYMERIZATION OF SAID SECOND PORTION ON SAID POST-POLYMERIZED FIRST PORTION IN THE PRESENCE OF FROM 0.1 TO 5 PARTS BY WEIGHT OF A CROSS-LINKING AGENT THEREBY TO PREPARE A RESIN, AND F. BLENDING FROM 1 TO 20 PERCENT BY WEIGHT OF SAID RESIN WITH FROM 99 TO 80 PERCENT BY WEIGHT OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND COPOLYMERS CONTAINING VINYL CHORIDE AS THE PRINCIPAL CONSTITUENT THEREOF.
Claim 6
Dependent Claim
140 words
FROM 50 TO 10 PERCENT BY WEIGHT OF A SECOND PORTION SELECTED FROM THE GROUP CONSISTING OF METHYLMETHACRYLATE MONOMER AND MONOMER MIXTURE OF STYRENE AND METHYL METHACRYLATE WITH METHYL METHACRYLATE AS THE PRINCIPAL CONSTITUENT, D. CAUSING POST-POLYMERIZATION OF SAID FIRST PORTION OF THE PLASTIC COMPONENT WITH SAID COAGULATED PARTICLES IN THE PRESENCE OF FROM 0.01 TO TO 5 PARTS BY WEIGHT OF A CROSSLINKING AGENT, E. THEN CAUSING POST-POLYMERIZATION OF SAID SECOND PORTION ON SAID POST-POLYMERIZED FIRST PORTION IN THE PRESENCE OF FROM 0.1 TO 5 PARTS BY WEIGHT OF A CROSS-LINKING AGENT THEREBY TO PREPARE A RESIN, AND F. BLENDING FROM 1 TO 20 PERCENT BY WEIGHT OF SAID RESIN WITH FROM 99 TO 80 PERCENT BY WEIGHT OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND COPOLYMERS CONTAINING VINYL CHORIDE AS THE PRINCIPAL CONSTITUENT THEREOF.
Claim 7
Dependent Claim
139 words
from 50 to 10 percent by weight of a second portion selected from the group consisting of methylmethacrylate monomer and monomer mixture of styrene and methyl methacrylate with methyl methacrylate as the principal constituent; d. causing post-polymerization of said first portion of the plastic component with said coagulated particles in the presence of from 0.01 to 5 parts by weight of a crosslinking agent; e. then causing post-polymerization of said second portion on said post-polymerized first portion in the presence of from 0.1 to 5 parts by weight of a cross-linking agent thereby to prepare a resin; and f. blending from 1 to 20 percent by weight of said resin with from 99 to 80 percent by weight of a substance selected from the group consisting oF polyvinyl chloride and copolymers containing vinyl chloride as the principal constituent thereof.
Claim 8
Dependent Claim
139 words
from 50 to 10 percent by weight of a second portion selected from the group consisting of methylmethacrylate monomer and monomer mixture of styrene and methyl methacrylate with methyl methacrylate as the principal constituent; d. causing post-polymerization of said first portion of the plastic component with said coagulated particles in the presence of from 0.01 to 5 parts by weight of a crosslinking agent; e. then causing post-polymerization of said second portion on said post-polymerized first portion in the presence of from 0.1 to 5 parts by weight of a cross-linking agent thereby to prepare a resin; and f. blending from 1 to 20 percent by weight of said resin with from 99 to 80 percent by weight of a substance selected from the group consisting oF polyvinyl chloride and copolymers containing vinyl chloride as the principal constituent thereof.
References Cited (Backward Citations)
US3558841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |