Low emission polyurethane polymers made with autocatalytic polyols
Abstract
The present invention discloses a process for producing a polyurethane product with autocatalytic polyols. These auto-catalytic polyols are based on an initiator of the formula (I): H m A-(CH 2 ) n —N(R)—(CH 2 ) p -AH m where n and p are independently integers from 2 to 6, A at each occurrence is independently oxygen, nitrogen or hydrogen, with the proviso that only one of A can be hydrogen at one time, R is a C 1 to C 3 alkyl group, m is equal to 0 when A is hydrogen, is 1 when A B is oxygen and is 2 when A is nitrogen; or are polyols which contain an alkyl amine of within the polyol chain or a dialkylylamino group pendant to the polyol chain wherein the polyol chain is obtained by copolymerization of at least one monomer containing an alkyl aziridine or N,N-dialkyl glycidylamine with at least one alkylene oxide. These auto-catalytic polyols are reacted with a polyisocyanate in the presence of other additives and/or auxiliary agents known per se to produce polyurethane products.
Claims
exact text as granted — not AI-modified1 - 29 . (canceled)
30 . An autocatalytic polyol composition that contains from 5 to 100 percent by weight of a polyol obtained by alkoxylation of at least one initiator molecule of formula
H m A-(CH 2 ) n —N(R)—(CH 2 ) p -AH m Formula (I)
where
n and p are independently integers from 2 to 6,
A and at each occurrence is independently oxygen, nitrogen or hydrogen, with the proviso that only one of A can be hydrogen at one time,
R is a C 1 to C 3 alkyl group
m is equal to 0 when A is hydrogen, is 1 when A B is oxygen and is 2 when A is nitrogen;
with the proviso that the initiator is not N-methyl diethanolamine.
31 . (canceled)
32 . A prepolymer formed by reaction of an excess of polyol with polyisocyanate to form a polyol terminated prepolymer wherein the polyol is obtained by alkoxylation of at least one initiator molecule of the formula
H m A-(CH 2 ) n —N(R)—(CH 2 ) p -AH m Formula (I)
where
n and p are independently integers from 2 to 6.
A and at each occurrence is independently oxygen nitrogen or hydrogen, with the proviso that only one of A can be hydrogen at one time,
R is a C 1 to C 3 alkyl group
m is equal to 0 when A is hydrogen, is 1 when A B is oxygen and is 2 when A is nitrogen, or
a compound which contains an alkyl amine within the polyol chain or a dialkylamino group pendant to the poyol chain wherein the polyol chain is obtained by copolymerization of at least one monomer containing an alkylaziridine or N,N-dialkyl glycicylamine with at least one alkylene oxide, wherein the alkyl or di-alkyl moiety of the amine is a C 1 to C 3 alkyl.
33 . (canceled)
34 . (canceled)
35 . A prepolymer formed by reacting an excess of a polyisocyanate with a polyol to form an isocyanate prepolymer wherein the polyol is obtained by alkoxylation of at least one initiator molecule of the formula
H m A-(CH 2 ) n —N(R)—(CH 2 ) p -AH m Formula (I)
where
n and p are independently integers from 2 to 6.
A and at each occurrence is independently oxygen, nitrogen or hydrogen, with the proviso that only one of A can be hydrogen at one time,
R is a C 1 to C 3 alkyl group
m is equal to 0 when A is hydrogen, is 1 when A B is oxygen and is 2 when A is nitrogen; or
a compound which contains an alkyl amine within the polyol chain or a dialkylamino group pendant to the poyol chain wherein the polyol chain is obtained by copolymerization of at least one monomer containing an alkylaziridine or N,N-dialkyl glycicylamine with at least one alkylene oxide, wherein the alkyl or di-alkyl moiety of the amine is a C 1 to C 3 alkyl.
36 . The use of the prepolymer of claim 32 with a blowing agent to produce a flexible or rigid foam.
37 . The use of the prepolymer of claim 35 with a blowing agent to produce a flexible or rigid foam.Join the waitlist — get patent alerts
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