Polyurethane molding mass that can be processed thermoplastically
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08G-018/32
C08G-018/65
C08G-018/66
C08G-018/44
C08G-018/48
출원번호
US-0539647
(2000-03-30)
우선권정보
DE-0015932 (1999-04-09)
발명자
/ 주소
Muhlfeld, Horst
Wagener, Silke
출원인 / 주소
Firma Carl Freudenberg
대리인 / 주소
Kenyon & Kenyon
인용정보
피인용 횟수 :
13인용 특허 :
5
초록▼
A polyurethane molding mass that can be processed thermoplastically, that is free of by-products capable of migration, and demonstrates a high level of light-fastness. A polyurethane molding mass that can be processed thermoplastically, that is free of cyclic oligourethanes capable of migration, and
A polyurethane molding mass that can be processed thermoplastically, that is free of by-products capable of migration, and demonstrates a high level of light-fastness. A polyurethane molding mass that can be processed thermoplastically, that is free of cyclic oligourethanes capable of migration, and demonstrates a high level of light-fastness, can be obtained, according to the invention, by reaction of one or more aliphatic polyols with a molecular weight of 450 to 4000 g/mol and an OH number of 20 to 235, selected from the group of polyadipates, polycaprolactones, polycarbonates, polytetrahydrofurane, and corresponding copolymers or mixtures of them, with 1,6-hexamethylene diisocyanate and a chain lengthening agent selected from the group of 1,5-pentane diol, 1,6-hexane diol, and 1,4-cyclohexane diol, with an equivalence ratio of the 1,6-hexamethylene diisocyanate to the polyol of 1.5:1 to 14.0:1, where the NCO characteristic number, formed from the quotient of the equivalence ratios of isocyanate groups to the sum of the hydroxyl groups of polyol and chain lengthening agent, multiplied by 100, lies in the range of 96 to 105.
대표청구항▼
A polyurethane molding mass that can be processed thermoplastically, that is free of by-products capable of migration, and demonstrates a high level of light-fastness. A polyurethane molding mass that can be processed thermoplastically, that is free of cyclic oligourethanes capable of migration, and
A polyurethane molding mass that can be processed thermoplastically, that is free of by-products capable of migration, and demonstrates a high level of light-fastness. A polyurethane molding mass that can be processed thermoplastically, that is free of cyclic oligourethanes capable of migration, and demonstrates a high level of light-fastness, can be obtained, according to the invention, by reaction of one or more aliphatic polyols with a molecular weight of 450 to 4000 g/mol and an OH number of 20 to 235, selected from the group of polyadipates, polycaprolactones, polycarbonates, polytetrahydrofurane, and corresponding copolymers or mixtures of them, with 1,6-hexamethylene diisocyanate and a chain lengthening agent selected from the group of 1,5-pentane diol, 1,6-hexane diol, and 1,4-cyclohexane diol, with an equivalence ratio of the 1,6-hexamethylene diisocyanate to the polyol of 1.5:1 to 14.0:1, where the NCO characteristic number, formed from the quotient of the equivalence ratios of isocyanate groups to the sum of the hydroxyl groups of polyol and chain lengthening agent, multiplied by 100, lies in the range of 96 to 105. es the valence of M. 12. The catalyst of claim 11 wherein L or L' is covalently bonded to the heterocyclobutenyl ligand. 13. A method of producing the catalyst of claim 1 which comprises: (a) deprotonating a heterocyclobutene and reacting the resulting anion with a Group 3 to 10 transition metal source to produce an organometallic complex comprising the metal, M, and at least one heterocyclobutenyl ligand that is bonded to M, and (b) combining the product of (a) with an activator. 14. A supported catalyst of claim 1. 15. A process which comprises polymerizing an olefin in the presence of the catalyst of claim 1. 16. A process which comprises copolymerizing ethylene with a C3-C10alpha-olefin in the presence of the catalyst of claim 1. 17. A method which comprises reacting a synthetic equivalent of a heterocyclobutenyl anion with a Group 3 to 10 transition metal source to produce an organometallic complex comprising the metal, M, and at least one heterocyclobutenyl ligand that is bonded to M. 18. The method of claim 17 wherein the synthetic equivalent has the structure: in which A is selected from the group consisting of N, P, O and S; R is selected from the group consisting of C1-C30hydrocarbyl and trialkylsilyl; when A is N or P, n is 1; when A is O or S, n is 0; each R1is independently selected from the group consisting of R, H, Cl, and Br; Q is selected from the group consisting of Si, Sn and Ge; and R" is a C1-C30hydrocarbyl group.
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