Synthesis of free racdical or visible light curable acid containing polymers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61K-006/083
C08F-008/30
C08J-003/28
C08K-003/34
C08L-031/06
C08L-033/02
출원번호
US-0765099
(2001-01-17)
발명자
/ 주소
Culbertson, Bill M.
Schricker, Scott R.
출원인 / 주소
The Ohio State University Research Foundation
대리인 / 주소
Calfee, Halter & Griswold LLP
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
Methods for preparing free radical or visible light curable (VLC) acid-containing polymers in an aqueous solution are provided. In one embodiment, the method comprises reacting polymers having reactive carboxylic acid groups with a methacrylated oxazoline or oxazine, collectively referred to hereaft
Methods for preparing free radical or visible light curable (VLC) acid-containing polymers in an aqueous solution are provided. In one embodiment, the method comprises reacting polymers having reactive carboxylic acid groups with a methacrylated oxazoline or oxazine, collectively referred to hereafter as "methacrylated unsaturated cyclic imino ethers," in an aqueous solution at a temperature of from about 50° C. to about 75° C. In another embodiment, the method comprises an additional step of preparing the carboxylic acid-containing polymer in an aqueous solution and then reacting the carboxylic acid-containing polymer with the methacrylated cyclic imino ether in the aqueous solution. The present invention also relates to free radical or VLC acid-containing polymers, and dental restoratives that comprise such polymers. Methods of attaching an oxazoline or oxazine to a carboxylate group on a polymer in an aqueous solution are also provided.
대표청구항▼
Methods for preparing free radical or visible light curable (VLC) acid-containing polymers in an aqueous solution are provided. In one embodiment, the method comprises reacting polymers having reactive carboxylic acid groups with a methacrylated oxazoline or oxazine, collectively referred to hereaft
Methods for preparing free radical or visible light curable (VLC) acid-containing polymers in an aqueous solution are provided. In one embodiment, the method comprises reacting polymers having reactive carboxylic acid groups with a methacrylated oxazoline or oxazine, collectively referred to hereafter as "methacrylated unsaturated cyclic imino ethers," in an aqueous solution at a temperature of from about 50° C. to about 75° C. In another embodiment, the method comprises an additional step of preparing the carboxylic acid-containing polymer in an aqueous solution and then reacting the carboxylic acid-containing polymer with the methacrylated cyclic imino ether in the aqueous solution. The present invention also relates to free radical or VLC acid-containing polymers, and dental restoratives that comprise such polymers. Methods of attaching an oxazoline or oxazine to a carboxylate group on a polymer in an aqueous solution are also provided. ide dihydroxide, butyltin hydroxide oxide hydrate, dibutyltin dilaurate, dibutyltin dimaleate, and mixtures thereof. 4. The composition of claim 1, wherein the monofunctional alkyl tin compound is present in an amount of about 0.1% to about 150% by weight based on the weight of the silica. 5. The composition of claim 1, wherein the monofunctional alkyl tin compound is fully or partially supported on the reinforcing filler. 6. The composition of claim 1, wherein the composition further comprises an alkyl alkoxysilane having the formula (R1)3--Si(OR2) or (R1)2--Si(OR2)2or (R1)--Si(OR2)3 wherein the alkoxy groups are the same or are different from each other; each R1independently comprises a C1to about C20aliphatic, about C5to about C20cycloaliphatic, or about C5to about C20aromatic group; and each R2independently comprises from one to about 6 carbon atoms. 7. The composition of claim 6, wherein the alkyl alkoxysilane is selected from the group consisting of octyl triethoxysilane, octyl trimethoxysilane, trimethyl ethoxysilane, silyl ethoxysilane, ethyl triethoxysilane, cyclohexyl triethoxysilane, dimethyl diethoxysilane, methyl triethoxysilane, propyl triethoxysilane, hexyl triethoxysilane, heptyl triethoxysilane, nonyl triethoxysilane, octadecyl triethoxysilane, methyl octyl diethoxysilane, dimethyl dimethoxysilane, methyl trimethoxysilane, propyl trimethoxysilane, hexyl trimethoxysilane, heptyl trimethoxysilane, nonyl triethoxysilane, octadecyl triethoxysilane, methyl octyl dimethoxysilane, and mixtures thereof. 8. The composition of claim 6, wherein the alkyl alkoxysilane compound is present in an amount of about 0.1% to about 150% by weight based on the weight of the silica. 9. The composition of claim 6, wherein the alkyl alkoxysilane is fully or partially supported on the reinforcing filler. 10. The composition of claim 1, wherein the elastomer is selected from the group consisting of homopolymers of a conjugated diene monomer; and copolymers and terpolymers comprising monomer units selected from conjugated diene monomers and monomers selected from the group consisting of monovinyl aromatic monomers and triene monomers. 11. The composition of claim 10, wherein the elastomer is selected from the group consisting of polyisoprene, polystyrene, polybutadiene, butadiene-isoprene copolymer, butadiene-isoprene-styrene terpolymer, isoprene-styrene copolymer, styrene-butadiene copolymer, 1,4-polybutadiene, vinyl polybutadiene, and mixtures thereof. 12. The composition of claim 1, wherein the elastomer contains a functional group derived from a polymerization terminating agent. 13. The composition of claim 12, wherein the terminating agent has the formula (R1)aZXb,wherein Z is tin or silicon, R1is selected from the group consisting of an alkyl having from about 1 to about 20 carbon atoms; a cycloalkyl having from about 3 to about 20 carbon atoms; an aryl having from about 6 to about 20 carbon atoms; and an aralkyl having from about 7 to about 20 atoms; X is a halogen or an alkoxy group; "a" is from 0 to 3, and "b" is from 1 to 4, and a+b =4. 14. The composition of claim 1, wherein the sulfur is selected from the group consisting of soluble sulfur, polymeric polysulfide, insoluble polymeric sulfur, and mixtures thereof. 15. The composition of claim 1, wherein the composition further comprises an additional processing aid selected from the group consisting of esters of fatty acid of hydrogenated C5or C6sugars, fatty acid esters of non-hydrogenated C5or C6sugars, polyoxyethylene derivatives of said hydrogenated and non-hydrogenated C5or C6sugars, esters of polyols, and mixtures thereof. 16. The composition of claim 15, wherein the a dditional processing aid is present in an amount of about 0.1% to about 60% by weight based on the weight of the silica. 17. The composition of claim 15, wherein the additional processing aid is fully or partially supported on the reinforcing filler. 18. The composition of claim 1, wherein the composition further comprises an additional filler selected from the group consisting of clay, talc, aluminum hydrate, mica, urea and sodium sulfate. 19. The composition of claim 18, wherein the additional filler is present in the amount of about 0.5 to about 40 parts by weight per hundred parts of the elastomer. 20. The composition of claim 18, wherein the monofunctional alkyl tin compound is supported fully or partially on the additional filler. 21. A pneumatic tire comprising a component produced from a vulcanized elastomeric composition that comprises an elastomer, a reinforcing filler comprising silica or a mixture thereof with carbon black, a monofunctional alkyl tin compound, a cure agent, and sulfur. 22. The tire of claim 21, wherein the elastomer is selected from the group consisting of homopolymers of conjugated diene monomers, and copolymers and terpolymers of the conjugated diene monomers with monovinyl aromatic monomers and trienes. 23. The tire of claim 21, wherein the elastomer is selected from the group consisting of polyisoprene, polystyrene, polybutadiene, butadiene-isoprene copolymer, butadiene-isoprene-styrene terpolymer, isoprene-styrene copolymer, and styrene-butadiene copolymer. 24. The tire of claim 21, wherein the monofunctional alkyl tin compound is selected from one or more of the group of alkyl tin compounds having the formula wherein R is independently selected from the group consisting of primary, secondary and tertiary alkyl groups having 1 to about 30 carbon atoms, alkaryl groups having about 6 to about 30 carbon atoms, and cycloaliphatic groups having about 5 to about 30 carbon atoms; A is independently selected from an oxy group and a carboxylate group; X is a halogen; R' is independently selected from hydrogen, C1to about C20saturated or unsaturated aliphatics, about C5to about C20cycloaliphatic, and about C6to about C20aromatic; "j" is an integer equal to 1 to 3; "m" is an integer equal to zero to 3; and "k" is an integer equal to zero to 3; and (j+k+m) equals 4; wherein when "k" is 2 or greater, R' optionally forms a bridge between two A groups. 25. A process for the preparation of a vulcanizable elastomeric composition comprising the steps of: a) mixing an elastomer with a reinforcing filler comprising silica or a mixture thereof with carbon black, a processing aid comprising a monofunctional alkyl tin compound, a cure agent, and an effective amount of sulfur to achieve a satisfactory cure of the composition; and b) effecting vulcanization. 26. The process of claim 25, wherein the monofunctional alkyl tin compound is selected from one or more of the group of alkyl tin compounds having the formula wherein R is independently selected from the group consisting of primary, secondary and tertiary alkyl groups having 1 to about 30 carbon atoms, alkaryl groups having about 6 to about 30 carbon atoms, and cycloaliphatic groups having about 5 to about 30 carbon atoms; A is independently selected from an oxy group and a carboxylate group; X is a halogen; R' is independently selected from hydrogen, C1to about C20saturated or unsaturated aliphatics, about C5to about C20cycloaliphatic, and about C6to about C20aromatic; "j" is an integer equal to 1 to 3; "m" is an integer equal to zero to 3; and "k" is an integer equal to zero to 3; and (j+k+m) equals 4; wherein when "k" is 2 or greater, R' optionally forms a bridge between two A groups.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (6)
Gross James R. (Lake Jackson TX), Absorbent articles made from carboxylic polyelectrolyte solutions containing bis-oxazoline crosslinker and methods for t.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.