US4348491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat stable molded phenolic resin article
Assignee: Plastics Engineering Co
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Filing: 1981-10-07
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Granted: 1982-09-07
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Expires: 2001-10-07
Abstract
Abstract A heat stable molded phenolic resin article comprising, in percent by weight, from about 20 to about 70 percent of an oil unmodified phenolic resin, from about 3 to about 25 percent of an acrylonitrile-butadiene elastomer, and from about 15 to about 70 percent of a silicate mineral. Also a molding composition comprising, in percent by weight, from about 20 to about 70 percent of an oil unmodified phenol-aldehyde thermosettable resin, from about 3 to about 25 percent of an acrylonitrile-butadiene elastomer, and from about 15 to about 70 weight percent of a silicate mineral.
Inventors
- 👤 Michael D. Bertolucci
- 👤 John R. Bartolomucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:09
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08L; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
56 words
A molded article exhibiting improved thermal stability consisting essentially of, in percent by weight, of: (i) from about 20 to about 70 percent of an oil unmodified phenolic resin; (ii) from about 3 to about 25 percent of an acrylonitrile-butadiene copolymer; and (iii) from about 15 to about 70 percent of at least one silicate mineral.
Claim 2
Dependent Claim
56 words
A molded article exhibiting improved thermal stability consisting essentially of, in percent by weight, of: (i) from about 20 to about 70 percent of an oil unmodified phenolic resin; (ii) from about 3 to about 25 percent of an acrylonitrile-butadiene copolymer; and (iii) from about 15 to about 70 percent of at least one silicate mineral.
Claim 3
Dependent Claim
17 words
The article of claim 1 wherein said oil unmodified phenolic resin is an oil unmodified novolak resin.
Claim 4
Dependent Claim
25 words
The article of claim 1 wherein said oil unmodified novolak resin is the condensation product of at least one oil unmodified phenol and a aldehyde.
Claim 5
Dependent Claim
10 words
The article of claim 3 wherein said aldehyde is formaldehyde.
Claim 6
Dependent Claim
17 words
The article of claim 1 wherein said oil unmodified phenolic resin is an oil unmodified resole resin.
Claim 7
Dependent Claim
25 words
The article of claim 5 wherein said oil unmodified resole resin is the condensation product of at least one oil unmodified phenol and an aldehyde.
Claim 8
Dependent Claim
25 words
The article of claim 1 wherein said silicate mineral is selected from glasses, the alkali and alkaline earth metal silicates, aluminum silicate, and mixtures thereof.
Claim 9
Dependent Claim
29 words
The article of claim 1 wherein said silicate mineral is selected from silane or titanate modified glasses, the alkali and alkaline earth metal silicates, aluminum silicate and mixtures thereof.
Claim 10
Dependent Claim
12 words
The article of claim 1 wherein said article contains lubricants and colorants.
Claim 11
Dependent Claim
57 words
A molding composition exhibiting improved thermal stability consisting essentially of, in percent by weight, of: (i) from about 20 to about 70 percent of a thermosettable oil unmodified phenol-aldehyde resin; (ii) from about 3 to about 25 percent of an acrylonitrile-butadiene copolymer; and (iii) from about 15 to about 70 percent of at least one silicate mineral.
Claim 12
Dependent Claim
57 words
A molding composition exhibiting improved thermal stability consisting essentially of, in percent by weight, of: (i) from about 20 to about 70 percent of a thermosettable oil unmodified phenol-aldehyde resin; (ii) from about 3 to about 25 percent of an acrylonitrile-butadiene copolymer; and (iii) from about 15 to about 70 percent of at least one silicate mineral.
Claim 13
Dependent Claim
18 words
The composition of claim 10 wherein said oil unmodified phenol-aldehyde resin is a thermosettable oil unmodified novolak resin.
Claim 14
Dependent Claim
25 words
The composition of claim 11 wherein said oil unmodified novolak resin is the condensation product of at least one oil unmodified phenol and an aldehyde.
Claim 15
Dependent Claim
10 words
The composition of claim 12 wherein said aldehyde is formaldehyde.
Claim 16
Dependent Claim
18 words
The composition of claim 10 wherein said oil unmodified phenol-aldehyde resin is a thermosettable oil unmodified resole resin.
Claim 17
Dependent Claim
25 words
The composition of claim 14 wherein said oil unmodified resole resin is the condensation product of at least one oil unmodified phenol and an aldehyde.
Claim 18
Dependent Claim
10 words
The composition of claim 15 wherein said aldehyde is formaldehyde.
Claim 19
Dependent Claim
24 words
The composition of claim 10 wherein said silicate mineral is selected from glasses, alkali and alkaline earth metal silicates, aluminum silicate, and mixtures thereof.
Claim 20
Dependent Claim
28 words
The composition of claim 10 wherein said silicate mineral is selected from silane or titanate modified glasses, alkali and alkaline earth metal silicates, aluminum silicate, and mixtures thereof.
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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) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |