Patent NL28669C successfully refreshed from Google Patents.
Patent US4200565A successfully refreshed from Google Patents.
US4200565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling agents for thermoset resin composites
Assignee: RIMC Inc
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Filing: 1978-08-29
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Granted: 1980-04-29
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Expires: 1998-08-29
Abstract
Abstract Novel thermosetting resin composites containing an inorganic mineral filler and a coupling agent are provided which include a coupling agent comprising a multifunctional hydroxl bearing hydrocarbon which has been at least partially acetylated. The novel coupling agents are particularly useful in reducing the viscosity of the resin-filler blend, thus resulting in better handling characteristics and lower energy requirements for the mechanical processing of the composite blends. The composites incorporating the coupling agents disclosed are particularly useful in the production of laminating resins for use in spray-laminate operations, as well as in the manufacture of fiber glass reinforced sheet-molding compounds (SMC) and bulk-molding compounds (BMC).
Inventors
- 👤 Francis C. Naughton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:22
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; C08K9/00; C08K9/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
46 words
A composition comprising a thermosetting resin containing a particulate inorganic mineral filler and a coupling agent in the amount of from about 0.2 to 3% by weight of said filler, said coupling agent comprising a multifunctional hydroxyl bearing compound which has been at least partially acetylated.
Claim 2
Dependent Claim
46 words
A composition comprising a thermosetting resin containing a particulate inorganic mineral filler and a coupling agent in the amount of from about 0.2 to 3% by weight of said filler, said coupling agent comprising a multifunctional hydroxyl bearing compound which has been at least partially acetylated.
Claim 3
Dependent Claim
20 words
The compostion of claim 1 wherein said compound is selected from the group consisting of glycols, polyglycols, polyols and polyglycerols.
Claim 4
Dependent Claim
26 words
The composition of claim 2 wherein said compound comprises a glycol and is selected from the group consisting of ethylene glycol, propylene glycol, and neopentyl glycol.
Claim 5
Dependent Claim
10 words
The composition of claim 2 wherein said compound comprises pentaerythritol.
Claim 6
Dependent Claim
10 words
The composition of claim 2 wherein said compound comprises glycerine.
Claim 7
Dependent Claim
11 words
The composition of claim 2 wherein said compound comprises trimethylol propane.
Claim 8
Dependent Claim
13 words
The composition of claim 6 wherein said trimethylol propane has been one-third acetylated.
Claim 9
Dependent Claim
32 words
The composition of claim 1 wherein said inorganic mineral filler is selected from the group consisting of silicas, metal silicates, metal oxides, hydrated aluminum oxides, antimony trioxides, calcium carbonate, and combinations thereof.
Claim 10
Dependent Claim
23 words
The composition of claim 1 wherein said coupling agent is present in an amount of from about 1% by weight of said filler.
Claim 11
Dependent Claim
22 words
The composition of claim 1 wherein said thermosetting resin is selected from the group consisting of polyesters, epoxies, polyurethanes, phenolics, and melamines.
Claim 12
Dependent Claim
36 words
A composition comprising a themosetting resin containing a particulate inorganic mineral filler and a coupling agent in the amount from about 0.2 to 3% by weight of said filler, said coupling agent comprising acetylated trimethylol propane.
Claim 13
Dependent Claim
36 words
A composition comprising a themosetting resin containing a particulate inorganic mineral filler and a coupling agent in the amount from about 0.2 to 3% by weight of said filler, said coupling agent comprising acetylated trimethylol propane.
Claim 14
Dependent Claim
14 words
The composition of claim 11 wherein said thermosetting resin comprises a polyester laminating resin.
Claim 15
Dependent Claim
13 words
The composition of claim 12 wherein said inorganic mineral filler comprises aluminum trihydrate.
Claim 16
Dependent Claim
15 words
The composition of claim 1 wherein the mineral filler is coated with the coupling agent.
Claim 17
Dependent Claim
15 words
The composition of claim 11 wherein the mineral filler is coated with the coupling agent.
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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) | 1983-04-29 | 1983-10-29 | 1984-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-29 | 1987-10-29 | 1988-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-29 | 1991-10-29 | 1992-04-29 | $7700.00 | Window Closed / Lapsed |