US3884848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of membrane-free nonlustrous polyurethane foam
Assignee: GFC FOAM Corp A CORP OF DE
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Filing: 1974-01-07
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Granted: 1975-05-20
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Expires: 1994-01-07
Abstract
Abstract This invention provides a substantially nonlustrous highly open urethane foam by the addition to the mixture foamed of a small amount of an ester of the formula (RCOO)n R'', wherein R and R'' are alkyl or alkenyl groups having from one to 30 carbon atoms, at least one of R and R'' having at least three carbon atoms, and wherein n is an integer from 1 to 3, for example, stearyl methacrylate, i.e., octodecyl methacrylate. When n is one, at least one of R and R'' has at least eight carbon atoms. A polyether-polyol type foam-stabilizing organo-silicon emulsifier is also added. Pigment and other conventional additives can also be added, if desired.
Inventors
- 👤 Michael A Ricciardi
- 👤 Michael L Cordora
- 👤 David Smudin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:17
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08J9/0023; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/63; C08G18/637; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11; C08L; C08L75/00; C08L75/04; C08L83/00; C08L83/04; C08G2110/00; C08G2110/0008; C08G2110/0041; C08G2110/005; C08J2375/00; C08J2375/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
183 words
IN A PROCESS FOR THE PREPARATION OF A FLEXIBLE CELLULAR SOLID URETHANE POLYMER FROM A REACTION MIXTURE INCLUDING A POLYOL, AN ORGANIC POLYISOCYANATE, A BLOWINGAGENT AND A HYDROPHILIC ORGANSILICON FOAM-STABILIZING EMULSIFIER-SURFACTANT DESIGNED AND ADAPTED FOR USE IN THE PREPARATION OF URETHANE POLYMER FOAM FROM A POLYETHER POLYOL AND AN ORGANIC POLYISOCYANATE, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS THE POLYOL REACTANT (1) A POLYETHER POLYOL OR (2) A POLYESTER POLYOL ADMIXED WITH AT LEAST TWO PERCENT BY WEIGHT OF A POLYESTER POLYOL, BASED UPON THE WEIGHT OF THE MIXTURE OF POLYESTER POLYOL AND POLYETHER POLYOL, AND INCLUDING IN THE REACTION MIXTURE AT LEAST ONE ESTER OF THE FORMULA (RCOO)N R'' IN A SUITABLE PROPORTION WHEREBY A NONLUSTROUS, SUBSTANTIALLY MEMBRANE-FREE FOAM IS OBTAINED, R AND R'' IN THE PRECEDING FORMULA BEING ALKYL OR ALKENYL GROUPS HAVING FROM ONE TO 30 CARBON ATOMS, AT LEAST ONE OF R AND R'' HAVING AT LEAST THREE CARBON ATOMS, AND N BEING AN INTEGER FROM 1 TO 3, WITH THE PROVISO THAT WHEN N IS ONE AT LEAST ONE OF R AND R'' HAS AT LEAST EIGHT CARBON ATOMS.
Claim 2
Dependent Claim
183 words
IN A PROCESS FOR THE PREPARATION OF A FLEXIBLE CELLULAR SOLID URETHANE POLYMER FROM A REACTION MIXTURE INCLUDING A POLYOL, AN ORGANIC POLYISOCYANATE, A BLOWINGAGENT AND A HYDROPHILIC ORGANSILICON FOAM-STABILIZING EMULSIFIER-SURFACTANT DESIGNED AND ADAPTED FOR USE IN THE PREPARATION OF URETHANE POLYMER FOAM FROM A POLYETHER POLYOL AND AN ORGANIC POLYISOCYANATE, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS THE POLYOL REACTANT (1) A POLYETHER POLYOL OR (2) A POLYESTER POLYOL ADMIXED WITH AT LEAST TWO PERCENT BY WEIGHT OF A POLYESTER POLYOL, BASED UPON THE WEIGHT OF THE MIXTURE OF POLYESTER POLYOL AND POLYETHER POLYOL, AND INCLUDING IN THE REACTION MIXTURE AT LEAST ONE ESTER OF THE FORMULA (RCOO)N R'' IN A SUITABLE PROPORTION WHEREBY A NONLUSTROUS, SUBSTANTIALLY MEMBRANE-FREE FOAM IS OBTAINED, R AND R'' IN THE PRECEDING FORMULA BEING ALKYL OR ALKENYL GROUPS HAVING FROM ONE TO 30 CARBON ATOMS, AT LEAST ONE OF R AND R'' HAVING AT LEAST THREE CARBON ATOMS, AND N BEING AN INTEGER FROM 1 TO 3, WITH THE PROVISO THAT WHEN N IS ONE AT LEAST ONE OF R AND R'' HAS AT LEAST EIGHT CARBON ATOMS.
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein said blowing agent is water.
Claim 4
Dependent Claim
13 words
The process of claim 1 wherein said organic polyisocyanate is an aromatic diisocyanate.
Claim 5
Dependent Claim
26 words
The process of claim 1 wherein said blowing agent is water, wherein said organic polyisocyanate is an aromatic dissocyanate, and wherein (RCOO)n R'' is stearyl methacrylate.
Claim 6
Dependent Claim
26 words
The process of claim 1 wherein said blowing agent is water, wherein said organic polyisocyanate is an aromatic diisocyanate, and wherein (RCOO)n R'' is 2-ethylhexyl acrylate.
Claim 7
Dependent Claim
26 words
The process of claim 1 wherein said blowing agent is water, wherein said organic polyisocyanate is an aromatic diisocyanate, and wherein (RCOO)n R'' is lauryl methacrylate.
Claim 8
Dependent Claim
26 words
The process of claim 1 wherein said blowing agent is water, wherein said organic polyisocyanate is an aromatic diisocyanate, and wherein (RCOO)n R'' is butyl oleate.
Claim 9
Dependent Claim
26 words
The process of claim 1 wherein said blowing agent is water, wherein said organic polyisocyanate is an aromatic diisocyanate, and wherein (RCOO)n R'' is butyl stearate.
Claim 10
Dependent Claim
26 words
The process of claim 1 wherein said blowing agent is water, wherein said organic polyisocyanate is an aromatic diisocyanate, and wherein (RCOO)n R'' is trimethylolpropane trimethacrylate.
Claim 11
Dependent Claim
27 words
The process of claim 1 wherein said blowing agent is water, wHerein said organic polyisocyanate is an aromatic diisocyanate, and wherein (RCOO)n R'' is ethylene glycol dimethacrylate.
Claim 12
Dependent Claim
28 words
The process of claim 1 wherein the amount of ester is from about two to about 10 parts by weight per 100 parts total weight of said polyol.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |