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US 2014/0275303 A1Published application
Rodent resistant polyurethane foams
AssigneeClayton Corporation
InventorsNickolas R. Yeates, Jay Yuan Zhang, Timothy A. Niemeyer, Timothy L. Franklin
Life of this patent
Estimating the term…
Abstract
One component polyurethane foam forming compositions are provided which contain a rodent repellent yet have shelf life stability of at least 6 months at 20° C. Two component polyurethane foam forming compositions are also provided.
Claims14
A one-component polyurethane foam forming composition comprising:
- (a) about 35 to about 55% by weight of a polyisocyanate;
- (b) about 10 to about 30% by weight of a polyol;
- (c) about 1 to about 10% by weight of a rodent repellent;
- and
- (d) about 10 to about 30% by weight of a blowing agent;
- wherein the weight ratio of polyisocyanate and polyol are such that the NCO/OH equivalent ratio is within the range of about 3:1 to about 10:1;
- and the composition has a shelf-life stability of at least 12 months at 25° C.
4 more elements
-66. (canceled)
A two-component polyurethane foam forming composition which comprises:
- an “A”-side comprising:
- about 70 to about 95% by weight of a polyisocyanate;
- about 4 to about 15% by weight of a blowing agent;
- and
- about 1 to about 10% by weight of dichlorobenzene;
- and
- a “B”-side comprising:
- about 20 to about 70% by weight of a polyol;
- and
- about 2 to about 30% by weight of a blowing agent;
- wherein the weight ratio of polyisocyanate and polyol are such that the NCO/OH equivalent ratio ranges from about 0.8:1 to about 1.4:1.
8 more elements
A two-component polyurethane foam forming composition which comprises:
- an “A”-side comprising:
- about 80 to about 95% by weight of a polyisocyanate;
- and
- about 5 to about 15% by weight of a blowing agent;
- and
- a “B”-side comprising:
- about 20 to about 70% by weight of a polyol;
- about 2 to about 30% by weight of a blowing agent;
- and
- about 1 to about 11% by weight of dichlorobenzene;
- wherein the weight ratio of polyisocyanate and polyol are such that the NCO/OH equivalent ratio ranges from about 0.8:1 to about 1.4:1.
8 more elements
A two-component polyurethane foam forming composition which comprises:
- an “A”-side comprising:
- about 75 to about 95% by weight of a polyisocyanate;
- about 4 to about 15% by weight of a blowing agent;
- and
- about 1 to about 10% by weight of dichlorobenzene;
- and
- a “B”-side comprising:
- about 20 to about 70% by weight of a polyol;
- about 2 to about 30% by weight of a blowing agent;
- and
- about 1 to about 11% by weight of dichlorobenzene;
- wherein the weight ratio of polyisocyanate and polyol are such that the NCO/OH equivalent ratio ranges from about 0.8:1 to about 1.4:1.
9 more elements
Dependencies are inferred from the claim text.