Fluorinated polyurethane elastomers prepared from polyether prepolymers formed from mono-substituted fluorinated oxetane monomers and tetrahydrofuran
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08G-018/10
C08G-018/32
출원번호
US-0520476
(2000-03-08)
발명자
/ 주소
Malik, Aslam A.
Archibald, Thomas G.
출원인 / 주소
Aerojet-General Corporation
대리인 / 주소
Townsend &
인용정보
피인용 횟수 :
2인용 특허 :
19
초록▼
The present invention provides, inter alia, novel fluorinated polyurethane elastomers (e.g., fluorinated thermoset polyurethane elastomers and fluorinated thermoplastic elastomers) prepared from polyether prepolymers formed from mono-substituted fluorinated oxetane monomers (FOX monomers) and tetrah
The present invention provides, inter alia, novel fluorinated polyurethane elastomers (e.g., fluorinated thermoset polyurethane elastomers and fluorinated thermoplastic elastomers) prepared from polyether prepolymers formed from mono-substituted fluorinated oxetane monomers (FOX monomers) and tetrahydrofuran (THF). In addition, the present invention provides methods of making such fluorinated polyurethane elastomers.
대표청구항▼
1. A fluorinated polyurethane elastomer having FOX/THF segments and comprising a mixture of monomeric repeat units having the formulae: wherein:each n is independently selected and is a number from 1 to 3; each R is independently selected from the group consisting of methyl and ethyl; each Rf is ind
1. A fluorinated polyurethane elastomer having FOX/THF segments and comprising a mixture of monomeric repeat units having the formulae: wherein:each n is independently selected and is a number from 1 to 3; each R is independently selected from the group consisting of methyl and ethyl; each Rf is independently selected from the group consisting of linear and branched perfluorinated alkyls and isoalkyls having from 1 to about 20 carbons, and oxa-perfluorinated polyethers having from about 4 to about 60 carbons; x is about 10 to about 250; z is 1 to about 250; R1 is a divalent hydrocarbyl radical; and w is 1 to about 50. 2. The fluorinated polyurethane elastomer in accordance with claim 1, wherein said fluorinated polyurethane elastomer is a fluorinated thermoset polyurethane elastomer.3. The fluorinated polyurethane elastomer in accordance with claim 1, wherein said fluorinated polyurethane elastomer is a fluorinated thermoplastic polyurethane elastomer.4. The fluorinated polyurethane elastomer in accordance with claim 1, wherein the isocyanate segment is produced from a member selected from the group consisting of hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), 4,4′-methylene diphenyl-isocyanate (MDI), polymeric MDI, toluene diisocyanates, hydrogenated MDI (HMDI), polymeric HDI, trimethylhexane diisocyanate and mixtures of at least two thereof.5. The fluorinated polyurethane elastomer in accordance with claim 1, further comprising a cross-link formed from a cross-linking agent or a chain-extender selected from the group consisting of low molecular weight polyols and polyamines.6. The fluorinated polyurethane elastomer in accordance with claim 5, wherein said cross-linking agent is selected from the group consisting of trimethylolpropane, pentaerythritol, trimethylolethane, triethanolamine, 1,4-butanediamine, xylene diamine, diethylenetriamine, methylene dianiline and diethanolamine.7. The fluorinated polyurethane elastomer in accordance with claim 5, wherein said chain extender is a member selected from the group consisting of 1,4-butanediol; 1,3-propanediol; and benzenedimethanol.8. The fluorinated polyurethane elastomer in accordance with claim 5, wherein said chain extender is 1,4-butanediol.9. The fluorinated polyurethane elastomer in accordance with claim 1, wherein the fluorinated polyether segment is produced from at least one mono-substituted FOX monomer selected from the group consisting of 3-(2,2,2-trifluoroethoxymethyl)-3-methyloxetane; 3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-3-methyloxetane; 3-(2,2,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxymethyl)oxetane; 3-(3,3,4,4,5,5,6,6,7,7,8,8,8-trideca-fluorooctyloxymethyl)-3-methyloxetane; 3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyloxymethyl)-3-methyloxetane; and 3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10,11,11,12,12,12-heneicosafluorododecyloxymethyl)-3-methyloxetane.
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이 특허에 인용된 특허 (19)
Hargis I. Glen (Tallmadge OH) Kausch Charles M. (Akron OH) Livigni Russell A. (Akron OH) Malik Aslam A. (Cameron Park CA) Melby Earl G. (Uniontown OH) Vitus Francis Jerome (Tallmadge OH), Abrasion-resistant and low friction coating compositions.
Malik Aslam A. (Cameron Park CA) Archibald Thomas G. (Fair Oaks CA), Fluorinated thermoset polyurethane elastomers prepared from polyether coprepolymers formed from mono-substituted fluorin.
Falk Robert A. (New City NY) Jacobson Michael (Haworth NJ) Clark Kirtland P. (Bethel CT), Heteroatom containing 3,3-bis-perfluoroalkyl oxetanes and polyethers therefrom.
Falk Robert A. (New City NY) Clark Kirtland P. (Bethel CT) Karydas Athanasios (Brooklyn NY), Heteroatom containing perfluoroalkyl terminated neopentyl glycols and compositions therefrom.
Falk Robert A. (New City NY) Clark Kirtland P. (Bethel CT) Karydas Athanasios (Brooklyn NY) Jacobson Michael (Stratford CT), Heteroatom containing perfluoroalkyl terminated neopentyl glycols and compositions therefrom.
Vandenberg Edwin J. (Fountain Hills AZ) Mullis Jeffrey C. (Tempe AZ), High molecular weight polymers and copolymers of 3-hydroxyoxetane and derivatives thereof.
Manser Gerald E. (Folsom CA) Shaw Graham C. (Garland UT) Shaw ; III Graham C. (Garland UT), Internally-plasticized polyethers from substituted oxetanes.
Marchionni Giuseppe (Milan ITX) De Patto Ugo (Cogliate ITX), Process for the production of perfluoropolyethers substantially constituted by perfluorooxyethylene and perfluorooxyprop.
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