US5374485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite polyacetal article
Assignee: Polyplastics Co Ltd
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Filing: 1991-10-03
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Granted: 1994-12-20
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Expires: 2011-10-03
Abstract
Abstract A polyacetal resin composition which comprises a polyacetal resin (as component A) and one or more members selected from the group consisting of an isocyanate compound, isothiocyanate compound, and modified product thereof (as component B) in an amount of 0.1-15 wt % of the composition, said polyacetal resin composition exhibiting good adhesion properties when bonded with a curable reactive resin adhesive. The present invention also relates to a part comprising a combination of the mold consisting of the composition and the adhesive.
Inventors
- 👤 Sei Wakatsuka
- 👤 Jun Fukasawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:41
CPC Classifications
C; C09; C09J; C09J175/00; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/56; C08K; C08K5/00; C08K5/16; C08K5/29; C08K5/36; C08K5/37; C08K5/372; C08K5/3725; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
124 words
A composite article which includes at least two components, and a cured reactive adhesive layer interposed between and surface-bonding said at least two components one to another, wherein at least one of said at least two components consists essentially of a molded polyacetal resin composition comprised of a melt-blend of (a) a polyacetal base resin, and (B) an amount between 0.1 to 15% by weight of an aliphatic or alicyclic polyisocyanate compound sufficient to provide unreacted isocyanate groups at a surface of said one component to be bonded to said another component, and wherein said isocyanate groups at said surface of said at least one component are reacted with said reactive resin adhesive layer to adhesively surface-bond said at least one and another components.
Claim 2
Dependent Claim
124 words
A composite article which includes at least two components, and a cured reactive adhesive layer interposed between and surface-bonding said at least two components one to another, wherein at least one of said at least two components consists essentially of a molded polyacetal resin composition comprised of a melt-blend of (a) a polyacetal base resin, and (B) an amount between 0.1 to 15% by weight of an aliphatic or alicyclic polyisocyanate compound sufficient to provide unreacted isocyanate groups at a surface of said one component to be bonded to said another component, and wherein said isocyanate groups at said surface of said at least one component are reacted with said reactive resin adhesive layer to adhesively surface-bond said at least one and another components.
Claim 3
Dependent Claim
29 words
A composite article as in claim 1, wherein said aliphatic or alicyclic polyisocyanate compound is selected from the group consisting of 1,6-hexamethylenediisocyanate, isophorone diisocyanate, and dimers and trimers thereof.
Claim 4
Dependent Claim
14 words
A composite article as in claim 1, which further comprises (C) an inorganic filler.
Claim 5
Dependent Claim
30 words
A composite article as in claim 3, wherein the inorganic filler is at least one glass filler selected from the group consisting of glass fibers, glass beads and glass flakes.
Claim 6
Dependent Claim
25 words
A composite article as in claim 1, wherein said aliphatic or alicyclic polyisocyanate compound is present in an amount between 2 to 10% by weight.
Claim 7
Dependent Claim
27 words
A composite article as in claim 1, wherein said cured reactive resin adhesive is selected from the group consisting of silicone resins, polyurethane resins, and epoxy resins.
References Cited (Backward Citations)
US3619268A
Cited
US4160851A
Cited
US4410595A
Cited
US4868268A
Cited
US4780498A
Cited
US4751103A
Cited
US5009950A
Cited
US4996103A
Cited
US4940750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-19 | 1998-06-20 | 1998-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-19 | 2002-06-20 | 2002-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-19 | 2006-06-20 | 2006-12-20 | $7700.00 | Window Closed / Lapsed |