Cellular plastic material
OwnerThomas M. Kurthinventor
Life of this patent
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Abstract
An improved cellular plastic material comprises a urethane foam that is the reaction product of soy oil, an isocyanate, and a cross linker. The soy oil replaces the polyol typically generally required in the production of urethanes. Because the replaced polyol is a petrochemical, use of a renewable and environmentally friendly material such as soy oil is most advantageous. Further, plastic materials of many final qualities may be formed using a single vegetable oil. In addition to cellular foams, solid plastic elastomers may be formed.
Claims26
A cellular plastic material, comprising the reaction product of an A-side and a B-side, wherein said A-side is comprised of an diisocyanate and said B-side is comprised of a vegetable oil, a cross-linking agent comprised of a multi-functional alcohol present in a ratio to said vegetable oil such that there are at least 0.7 moles of OH groups per mole of bulk vegetable oil, a catalyst and a blowing agent.
A method of preparing a cellular plastic material comprising the steps of combining an A-side material with a B-side material;
- wherein said A-side comprises an dilsocyanate and said B-side material comprises blown soy oil, a cross-linker comprised of a multi-functional alcohol, present in a ratio with said soy oil such that there is at least 0.7 moles of OH group per mole of bulk soy oil, a catalyst and a blowing agent.
A method of selectively preparing cellular plastic materials comprising the steps of reacting an A-side material with a B-side material, wherein said A-side comprises an isocyanate and said B-side material comprises blown soy oil, a multi-functional alcohol cross-linking agent present in such quantities that a ratio of moles of OH groups to moles of bulk soy oil is between 0.7 and 1.2 equivalent moles of OH groups to one mole of bulk soy oil, a tertiary amine catalyst and a blowing agent.
A polyurethane cellular plastic comprising the reaction product of an A-side and a B-side, wherein said A-side comprises an diisocyanate and said B-side is comprised of bulk soy oil, a cross-linking agent comprised of a multi-functional alcohol present in a ratio to said bulk soy oil such that there are at least 0.7 moles of OH groups per mole of bulk soy oil, a catalyst and a blowing agent.
A cellular plastic foam material, comprising the reaction product of between 70 and 85 parts of an A-side material and 100 parts of a B-side material, wherein said A-side material comprises an isocyanate and said B-side material comprises 100 parts of blown soy oil, between 8 to 18 parts cross-linking agent providing at least 0.7 moles of OH groups per mole of bulk vegetable oil, 1 to 12 parts catalyst and 2 to 14 parts blowing agent.
A cellular plastic foam material, comprising the reaction product of 70 to 85 parts of an A-side material and 100 parts of a B-side material, wherein said A-side material comprises an isocyanate and said B-side material comprises 100 parts blown soy oil, from 8 to 16 parts cross linking agent providing 0.70 to 1.2 moles OH per mole soy oil, from 2.5 to 11 parts catalyst and from 5 to 13 parts blowing agent.
A cellular plastic foam material comprising the reaction product of 70 to 85 parts of an A-side material with 100 parts of a B-side material, wherein said A-side comprises an isocyanate and said B-side comprises 100 parts blown soy oil, from 9 to 14 parts cross linking-agent providing 0.70 to 1.2 moles OH per mole soy oil, from 2 to 6 parts catalyst and from 4 to 9 parts blowing agent.
A solid plastic elastomer comprising the reaction product of 70 to 85 parts of an A-side material and 100 parts of a B-side material, wherein said A-side material comprises an isocyanate and said B-side material comprises 100 parts blown soy oil, 8 to 20 parts cross-linking agent and from 1 to 15 parts catalyst.
Dependencies are inferred from the claim text.