US3287443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of blends of vinyl chloride resins and graft copolymers of styrene, acrylonitrile and methyl methacrylate onto diene polymers
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1963-12-16
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Granted: 1966-11-22
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Saito Kazuo
- 👤 Yoshino Masaaki
- 👤 Yoshioka Shunichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:02
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L51/00; C08L51/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
210 words
A METHOD OF MANUFACTURING COMPOSITIONS OF THE VINYL CHLORIDE SERIES WHICH COMPRISES UTILIZING AN AQUEOUS DISPERSION OF POLYMER PARTICLES SELECTED FROM THE GROUP CONSISTING OF A HOMOPOLYMER OF BUTADIENE 1,3 AND COPOLYMERS CONSISTING OF AT LEAST 70% BY WEIGHT OF BUTADIENE-1,3 AND UP TO 30% BY WEIGHT OF MONOETHYLENICALLY UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH, AT LEAST 80% BY WEIGHT OF THE DISPERSION PARTICLES OF THE POLYMER HAVING A PARTICLE DIAMETER OF FROM 0.02 TO 0.2 MICRONS; POLYMERIZING A MONOMERIC MIXTURE TO 20 TO 70 OUS DISPERSION AT A PH OF FROM 4.0 TO 9.5 AND AT WEIGHT RATIOS OF 80 TO 30 PARTS MONOMERIC MIXTURE TO 20 TO 70 PARTS OF THE PARTICLES IN THE SYSTEM, THE MONOMERIC MIXTURE CONSISTING OF 10% TO 50% BY WEIGHT ACRYLONITRILE CARBON MONOMER, AND 10% TO 45% BY WEIGHT MEHYL CARBON MONOMER, AND 1:% TO 50% BY WEIGHT METHYL METHACRYLATE MONOMER; AND ADMIXING 10 TO 40 PARTS BY WEIGHT OF THE OBTAINED GRAFT POLYMERIZATION PRODUCT WITH 90 TO 60 PARTS BY WEIGHT OF RESIN OF THE VINYL CHLORIDE SERIES WHICH IS SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL CHLORIDE AND COPOLYMERIZATION PRODUCTS OF AT LEAST 70% BY WEIGHT VINYL CHLORIDE AND UP TO 30% BY WEIGHT MONOMERS OF ETHYLENICALLY UNSATURATED COMPOUND COPOLYMERIABLE THEREWITH.
Claim 2
Independent Claim
210 words
A METHOD OF MANUFACTURING COMPOSITIONS OF THE VINYL CHLORIDE SERIES WHICH COMPRISES UTILIZING AN AQUEOUS DISPERSION OF POLYMER PARTICLES SELECTED FROM THE GROUP CONSISTING OF A HOMOPOLYMER OF BUTADIENE 1,3 AND COPOLYMERS CONSISTING OF AT LEAST 70% BY WEIGHT OF BUTADIENE-1,3 AND UP TO 30% BY WEIGHT OF MONOETHYLENICALLY UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH, AT LEAST 80% BY WEIGHT OF THE DISPERSION PARTICLES OF THE POLYMER HAVING A PARTICLE DIAMETER OF FROM 0.02 TO 0.2 MICRONS; POLYMERIZING A MONOMERIC MIXTURE TO 20 TO 70 OUS DISPERSION AT A PH OF FROM 4.0 TO 9.5 AND AT WEIGHT RATIOS OF 80 TO 30 PARTS MONOMERIC MIXTURE TO 20 TO 70 PARTS OF THE PARTICLES IN THE SYSTEM, THE MONOMERIC MIXTURE CONSISTING OF 10% TO 50% BY WEIGHT ACRYLONITRILE CARBON MONOMER, AND 10% TO 45% BY WEIGHT MEHYL CARBON MONOMER, AND 1:% TO 50% BY WEIGHT METHYL METHACRYLATE MONOMER; AND ADMIXING 10 TO 40 PARTS BY WEIGHT OF THE OBTAINED GRAFT POLYMERIZATION PRODUCT WITH 90 TO 60 PARTS BY WEIGHT OF RESIN OF THE VINYL CHLORIDE SERIES WHICH IS SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL CHLORIDE AND COPOLYMERIZATION PRODUCTS OF AT LEAST 70% BY WEIGHT VINYL CHLORIDE AND UP TO 30% BY WEIGHT MONOMERS OF ETHYLENICALLY UNSATURATED COMPOUND COPOLYMERIABLE THEREWITH.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |