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US4582762A
Expired / Lapsed
US
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Soft vinyl chloride resin-silicone composite shaped article
Assignee: Fuji Systems Corp
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Filing: 1984-10-29
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Granted: 1986-04-15
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Expires: 2004-10-29
Abstract
Abstract A soft vinyl chloride resin-silicone composite shaped article consisting of a soft vinyl chloride resin shaped article and a cured layer of an addition polymerization type silicone composition adhered to the surface of the vinyl chloride resin shaped article, wherein said addition polymerization type silicone composition contains an organohydrogenpolysiloxane having at least two hydrogen atoms directly bonding with silicon atoms in each molecule, in an amount enough to provide one to six such hydrogen atoms per one vinyl group of the silicone composition. The above composite shaped article has a very high bonding strength between the vinyl chloride resin shaped article and the cured layer of an addition polymerization type silicone composition.
Inventors
- 👤 Masayuki Onohara
- 👤 Masaru Shibata
- 👤 Akira Igarashi
- 👤 Nobuhisa Kawaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:20
CPC Classifications
A; A61; A61L; A61L33/00; A61L33/06; A61L33/068; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/32; B32B27/322; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06; C08J2483/00; C08J2483/04; Y; Y10; Y10S; Y10S128/00; Y10S128/21; Y10S138/00; Y10S138/07; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/1341; Y10T428/1352; Y10T428/1379; Y10T428/31504; Y10T428/31511; Y10T428/31551; Y10T428/31573; Y10T428/3158; Y10T428/31652; Y10T428/31663; Y10T428/31667; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31935
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
A soft vinyl chloride resin-silicone composite shaped article consisting of a soft vinyl chloride resin shaped article and a cured layer of an addition polymerization type silicone composition adhered to the surface of the vinyl chloride resin shaped article, wherein said addition polymerization type silicone composition contains an organohydrogenpolysiloxane having at least two hydrogen atoms directly bonded to silicon atoms in each molecule, in an amount enough to provide one to six such hydrogen atoms per one vinyl group of the silicone composition.
Claim 2
Dependent Claim
83 words
A soft vinyl chloride resin-silicone composite shaped article consisting of a soft vinyl chloride resin shaped article and a cured layer of an addition polymerization type silicone composition adhered to the surface of the vinyl chloride resin shaped article, wherein said addition polymerization type silicone composition contains an organohydrogenpolysiloxane having at least two hydrogen atoms directly bonded to silicon atoms in each molecule, in an amount enough to provide one to six such hydrogen atoms per one vinyl group of the silicone composition.
Claim 3
Dependent Claim
79 words
A soft vinyl chloride resin-silicone composite shaped article according to claim 1, wherein the addition polymerization type silicone composition further contains, as components for improving its bonding strength, at least one compound selected from the group consisting of epoxy compounds, carboxylic acid anhydrides, silanes or siloxanes having an acryloxyalkyl group represented by the formula, ##STR8## wherein R is CH 3 or a hydrogen atom and n is an integer of 1 to 3, and unsaturated hydrocarbon group-containing oxysilane compounds.
Claim 4
Dependent Claim
41 words
A soft vinyl chloride resin-silicone composite shaped article according to claim 1, wherein the soft vinyl chloride resin contains a stabilizer and the stabilizer contains at least one metal selected from the group consisting of Ca, Zn, Ba, Mg and Al.
References Cited (Backward Citations)
JPS50124953A
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JPS51127132A
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JPS5224258A
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JPS5239751A
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JPS52125455A
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JPS5461242A
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JPS54101884A
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JPS5681362A
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US4490420A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |