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US 11,851,521 B2Granted
Polyurethane foam and methods of forming the same
AssigneeSaint-Gobain Performance Plastics Corporation
InventorsJing Zhou, Yue Dong, Song Yu
Life of this patent
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Abstract
A polyurethane foam may include a base polyol component, a phosphorous polyol component, an expandable graphite, and melamine. The polyurethane foam may have a VO rating based on a UL94 flame retardancy test performed at a polyurethane foam thickness of 3.5 mm and a polyurethane foam density of 380 kg/m3.
Claims13
A polyurethane foam comprising:
- a base polyol component;
- a phosphorous polyol component;
- an isocyanate at a content of at least about 1 wt. % and not greater than about 9.0 wt. % for a total weight of the polyurethane foam, and
- an expandable graphite at a content of at least about 8 wt. % and not greater than about 40 wt. % for a total weight of the polyurethane foam, wherein the phosphorous polyol component comprises at least one ethylene oxide (EO) terminal and an ethylene oxide content of not greater than about 30%, and
- wherein the polyurethane foam comprises a V0 rating based on a UL94 flame retardancy test performed at a polyurethane foam thickness of 3.5 mm and a polyurethane foam density of 380 kg/m3.
2 more elements
A method of forming a polyurethane foam comprising:
- providing a raw material mixture comprising:
- a raw base polyol component;
- a raw phosphorous polyol component;
- a raw isocyanate at a content of at least about 1 wt. % and not greater than about 9.0 wt. % for a total weight of the raw material mixture, and
- a raw expandable graphite component at a content of at least about 8 wt. % and not greater than about 40 wt. % for a total weight of the raw material mixture, and
- forming the raw material mixture into a polyurethane foam,
- wherein the phosphorous polyol component comprises at least one ethylene oxide (EO) terminal and an ethylene oxide content of not greater than about 30%, and
- wherein the polyurethane foam comprises a V0 rating based on a UL94 flame retardancy test at a polyurethane foam thickness of 3.5 mm and a polyurethane foam density of 380 kg/m3.
5 more elements
A battery compression pad comprising a polyurethane foam, wherein the polyurethane foam comprising:
- a base polyol component;
- a phosphorous polyol component;
- an isocyanate at a content of at least about 1 wt. % and not greater than about 9.0 wt. % for a total weight of the polyurethane foam, and an expandable graphite at a content of at least about 8 wt. % and not greater than about 40 wt. % for a total weight of the polyurethane foam, wherein the phosphorous polyol component comprises at least one ethylene oxide (EO) terminal and an ethylene oxide content of not greater than about 30%, and wherein the polyurethane foam comprises a V0 rating based on a UL94 flame retardancy test performed at a polyurethane foam thickness of 3.5 mm and a polyurethane foam density of 380 kg/m3.
Dependencies are inferred from the claim text.