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US 2013/0096224 A1Published application
Polyurethane based photoinitiators
OwnerChristian B. Nielsen, Niels Joergen Madseninventors
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Abstract
A photoinitiator of the general formula (I): (—(R1(A1)m)u—(R2(A2)n-0)0—(R3(A3)p-0)q-(R4(A4)r)v-C(0)NH—R5(A5)5-NHC(0))t- wherein R1(R2, R3, R4 and R5 and m, n, o, p, q, r, s, t, u and v are as defined herein and A1, A2, A3, A4 and A5 are identical or different photoinitiator moieties.
Claims23
A polymeric photoinitiator of the general formula I:
- (—(R1 (A1)m)u-(R2(A2)n-O)o—(R3(A3)p-O)q—(R4(A4)r)v-C(O)NH—R5 (A5)s-NHC(O))t— (I)
- wherein R2, R3 and R5 can each independently be selected from C1-C25 linear alkyl, C3-C25 branched alkyl, C3-C25 cycloalkyl, aryl and heteroaryl groups such as any aromatic hydrocarbon with up to 20 carbon atoms;
- R1 and R4 are each independently selected from C1-C25 linear alkyl, C3-C25 branched alkyl, C3-C25 cycloalkyl, aryl, heteroaryl, hydrogen, —OH, —CN, halogens, amines, amides, alcohols, ethers, thioethers, sulfones and derivatives thereof, sulfonic acid and derivatives thereof, sulfoxides and derivatives thereof, carbonates, nitrates, acrylates, hydrazine, azines, hydrazides, polyethylenes, polypropylenes, polyesters, polyamides, polyacrylates, polystyrenes, and polyurethanes;
- and when R1 and R4 are alkyl and aryl groups, they may be substituted with one or more substituents selected from CN;
- OH;
- azides;
- esters;
- ethers;
- amides;
- halogen atoms;
- sulfones;
- sulfonic derivatives;
- NH2 or Nalk2, where alk is any C1-C8 straight chain alkyl group, C3-C8 branched or cyclic alkyl group;
- m, n, p, and r are independently real numbers from 0 to 10 and s is a real number greater than or equal to 1;
- o and q are independently real numbers from 0 to 10000, provided that both o and q are not zero;
- u and v are independently real numbers from 0 to 1;
- t is an integer from 1 to 10000;
- and
- A1, A2, A3, A4 and A5 are identical or different photoinitiator moieties.
16 more elements
A method for the manufacture of a cross-linked matrix composition, said method comprising the steps of
- a. providing a matrix composition consisting of a polymeric photoinitiator of the general formula I:
- (—(R1(A1)m)u-(R2(A2)n-O)o-(R3(A3)p-O)q—(R4(A4)r)v-C (O)NH—R5(A5)s-NHC(O)t— (I)
- wherein R2, R3 and R5 can each independently be selected from C1-C25 linear alkyl, C3-C25 branched alkyl, C3-C25 cycloalkyl, aryl and heteroaryl groups such as any aromatic hydrocarbon with up to 20 carbon atoms;
- R1 and R4 are each independently selected from C1-C25 linear alkyl, C3-C25 branched alkyl, C3-C25 cycloalkyl, aryl, heteroaryl, hydrogen, —OH, —CN, halogens, amines, amides, alcohols, ethers, thioethers, sulfones and derivatives thereof, sulfonic acid and derivatives thereof, sulfoxides and derivatives thereof, carbonates, isocyanates, nitrates, acrylates, hydrazine, azines, hydrazides, polyethylenes, polypropylenes, polyesters, polyamides, polyacrylates, polystyrenes, and polyurethanes;
- and when R1 and R4 are alkyl and aryl groups, they may be substituted with one or more substituents selected from CN;
- OH;
- azides;
- esters;
- ethers;
- amides;
- halogen atoms;
- sulfones;
- sulfonic derivatives;
- NH2 or Nalk2, where alk is any C1-C8 straight chain alkyl group, C3-C8 branched or cyclic alkyl group;
- m, n, p, r and s are real numbers, from 0 to 10, provided that the sum of n+p+s is a real number greater than 0;
- o and q are real numbers from 0 to 10000;
- u and v are real numbers from 0 to 1;
- t is an integer from 1 to 10000;
- and
- A1, A2, A3, A4 and A5 are identical or different photoinitiator moieties, and
- b. curing the matrix composition obtained in step a. by exposing it to UV radiation.
18 more elements
Dependencies are inferred from the claim text.