US4005036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frothed molding compositions
Assignee: Owens Corning
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Filing: 1974-04-25
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Granted: 1977-01-25
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Expires: 1994-04-25
Abstract
Abstract Frothed molding compositions comprising a film of uncured binder uniformly dispersed throughout a fibrous matrix, wherein the molding composition is frothed in the presence of frothing agents of salts of fatty acids, are disclosed. These frothed molding compositions can be used in molding doors, panels and miscellaneous shapes for structural and furnishing applications.
Inventors
- 👤 Joseph P. Stalego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:16
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/30; C08J9/0085; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/14; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L61/00; C08J2361/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
88 words
A frothed molding composition consisting essentially of a film of an uncured binder uniformly dispersed throughout a fibrous matrix of fibers wherein the molding composition is frothed in the presence of a frothing agent of salts of fatty acids wherein the composition comprises 35 to 95% by weight of solids of binder and 5 to 65% by weight of solids of fibers and wherein the uncured binder is a phenol-formaldehyde condensate, a phenol-aminoplast-formaldehyde condensate, an aminoplast-formaldehyde condensate, a furfuryl condensate, a furfuryl alcohol condensate, or a resorcinol-formaldehyde condensate.
Claim 2
Dependent Claim
88 words
A frothed molding composition consisting essentially of a film of an uncured binder uniformly dispersed throughout a fibrous matrix of fibers wherein the molding composition is frothed in the presence of a frothing agent of salts of fatty acids wherein the composition comprises 35 to 95% by weight of solids of binder and 5 to 65% by weight of solids of fibers and wherein the uncured binder is a phenol-formaldehyde condensate, a phenol-aminoplast-formaldehyde condensate, an aminoplast-formaldehyde condensate, a furfuryl condensate, a furfuryl alcohol condensate, or a resorcinol-formaldehyde condensate.
Claim 3
Dependent Claim
32 words
A frothed molding composition according to claim 1 wherein the composition comprises 55 to 85% by weight of solids of uncured binder and 15 to 45% by weight of solids of fibers.
Claim 4
Dependent Claim
16 words
A frothed molding composition according to claim 1 wherein the aminoplast is urea, melamine or dicyandiamide.
Claim 5
Dependent Claim
23 words
A frothed molding composition according to claim 1 wherein the uncured binder is a phenol-formaldehyde condensate, a phenol-aminoplast-formaldehyde condensate or an aminoplast-formaldehyde condensate.
Claim 6
Dependent Claim
14 words
A frothed molding composition according to claim 1 wherein the fibers are glass fibers.
Claim 7
Dependent Claim
34 words
A frothed molding composition according to claim 1 wherein the fibers have a mean diameter ranging from 0.00025 to 0.00050 inches and a mean length ranging from 10 to 100 times their mean diameter.
Claim 8
Dependent Claim
18 words
A frothed molding composition according to claim 1 wherein particles of cured resin are adhered to the fibers.
Claim 9
Dependent Claim
23 words
A frothed molding composition according to claim 1 wherein the frothing agents are ammonium amine, sodium, potassium or lithium salts of fatty acids.
Claim 10
Dependent Claim
15 words
A frothed molding composition according to claim 1 wherein the frothing agents are ammonium salts.
Claim 11
Dependent Claim
15 words
A frothed molding composition according to claim 1 wherein the frothing agent is ammonium stearate.
Claim 12
Dependent Claim
19 words
A frothed molding composition according to claim 1 including 0 to 60% by weight of solids of thermoplastic resins.
Claim 13
Dependent Claim
22 words
A frothed molding composition according to claim 11 wherein the composition comprises 0 to 30% by weight of solids of thermoplastic resins.
Claim 14
Dependent Claim
35 words
A frothed molding composition according to claim 11 wherein the thermoplastic resins are polyvinyl chloride, polyvinyl chloride-acrylic copolymers, polyvinyl chloride copolymers containing reactive carboxyl groups or amide groups, acrylics or reactive acrylics containing carboxyl radicals.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-25 | 1980-07-26 | 1981-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-25 | 1984-07-26 | 1985-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-25 | 1988-07-26 | 1989-01-25 | $7700.00 | Window Closed / Lapsed |