Patent US4070331A successfully refreshed from Google Patents.
US4070331A
Expired / Lapsed
US
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Method of making molding compounds and products produced thereby
Assignee: Owens Corning
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Filing: 1976-12-17
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Granted: 1978-01-24
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Expires: 1996-12-17
Abstract
Abstract A controlled reaction is had by reacting a phenol monomer with a basic catalyst to form a phenolate salt and the phenolate salt is then reacted with an aldehyde while dispersed throughout the inorganic filler of a molding compound. The reaction is stopped at a fusible state to produce a molding compound.
Inventors
- 👤 Walter D. Cottrell, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:06
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/10; C04B26/12; C04B26/122; C08; C08G; C08G8/00; C08G8/04; C08G8/28
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
73 words
A method of producing molding compounds from phenol aldehyde condensates that are produced by means of a basic catalyst comprising: reacting a phenol monomer with the basic catalyst for the reaction to form a phenolate salt; reacting the phenolate salt with the aldehyde therefor in relative proportions to form the phenol-aldehyde condensate and while dispersed throughout the inorganic filler of the molding compound, and causing the reaction to stop at a fusible state.
Claim 2
Independent Claim
73 words
A method of producing molding compounds from phenol aldehyde condensates that are produced by means of a basic catalyst comprising: reacting a phenol monomer with the basic catalyst for the reaction to form a phenolate salt; reacting the phenolate salt with the aldehyde therefor in relative proportions to form the phenol-aldehyde condensate and while dispersed throughout the inorganic filler of the molding compound, and causing the reaction to stop at a fusible state.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein the basic catalyst is dispersed throughout the inorganic filler before the phenol is reacted therewith.
Claim 4
Dependent Claim
29 words
The method of claim 1 wherein the aldehyde is a solid and the solid aldehyde is dry blended with the filler and phenolate salt before the reaction is initiated.
Claim 5
Dependent Claim
19 words
The method of claim 3 wherein free water is eliminated and the material is subdivided to a flowable solid.
Claim 6
Dependent Claim
23 words
A method of producing molded parts comprising: compressing the product of claim 1 between heated surfaces to finish crosslinking the incompletely crosslinked condensate.
Claim 7
Dependent Claim
28 words
A method of producing molded parts comprising: introducing the flowable solid of claim 4 into a heated mold, and further crosslinking the fusible condensate into an infusible state.
Claim 8
Independent Claim
60 words
A method of producing molding compounds comprising: hydrating a base containing inorganic hydratable cement, pulverizing the hydrated cement, reacting the pulverized hydrated cement with a material containing a phenolic hydroxyl group, mixing the reaction product with an aldehyde in relative proportions to form the phenol-aldehyde condensate, and reacting the phenolic reaction product and aldehyde into a fusible incompletely crosslinked condensate.
Claim 9
Independent Claim
60 words
A method of producing molding compounds comprising: hydrating a base containing inorganic hydratable cement, pulverizing the hydrated cement, reacting the pulverized hydrated cement with a material containing a phenolic hydroxyl group, mixing the reaction product with an aldehyde in relative proportions to form the phenol-aldehyde condensate, and reacting the phenolic reaction product and aldehyde into a fusible incompletely crosslinked condensate.
Claim 10
Dependent Claim
20 words
The method of claim 7 including the step of cooling the mixture containing the fusible condensate to prevent complete crosslinking.
Claim 11
Dependent Claim
19 words
The method of claim 8 including the step of subdividing the product of claim 8 into a flowable solid.
Claim 12
Dependent Claim
26 words
A molding compound comprising: a fusible partial condensate of an aldehyde and a phenolate of Portland cement in relative proportions to form a phenol-aldehyde condensate resin.
Claim 13
Dependent Claim
26 words
A molding compound comprising: a fusible partial condensate of an aldehyde and a phenolate of Portland cement in relative proportions to form a phenol-aldehyde condensate resin.
Claim 14
Dependent Claim
28 words
A molded article comprising the crosslinked state of a phenolate of Portland cement and an aldehyde in relative proportions to form a Portland cement filled phenol-aldehyde condensate resin.
Claim 15
Dependent Claim
28 words
A molded article comprising the crosslinked state of a phenolate of Portland cement and an aldehyde in relative proportions to form a Portland cement filled phenol-aldehyde condensate resin.
Claim 16
Dependent Claim
13 words
A molded article comprising the crosslinked state of the material of claim 10.
Claim 17
Dependent Claim
46 words
A molding compound comprising: the reaction product of Portland cement and a material containing a phenolic hydroxy group, and the reaction product of Portland cement and formalin, said reaction products in turn being reacted in relative proportions to give a cement filled - phenol-aldehyde condensate resin.
Claim 18
Dependent Claim
46 words
A molding compound comprising: the reaction product of Portland cement and a material containing a phenolic hydroxy group, and the reaction product of Portland cement and formalin, said reaction products in turn being reacted in relative proportions to give a cement filled - phenol-aldehyde condensate resin.
Claim 19
Dependent Claim
13 words
The molding compound of claim 13 reacted into an incompletely crosslinked fusible condition.
Claim 20
Dependent Claim
10 words
A molded article comprising the reaction product of claim 14.
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) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |