IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0195853
(2002-07-15)
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발명자
/ 주소 |
- Winckler, Steven J.
- Takekoshi, Tohru
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출원인 / 주소 |
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대리인 / 주소 |
Testa, Hurwitz & Thibeault, LLP
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인용정보 |
피인용 횟수 :
24 인용 특허 :
79 |
초록
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A water slurry process is used to prepare a prepreg and to manufacture articles from macrocyclic polyester oligomers. In one embodiment, a process for preparing a water suspension of macrocyclic polyester oligomers includes the steps of contacting a macrocyclic polyester oligomer and a polymerizatio
A water slurry process is used to prepare a prepreg and to manufacture articles from macrocyclic polyester oligomers. In one embodiment, a process for preparing a water suspension of macrocyclic polyester oligomers includes the steps of contacting a macrocyclic polyester oligomer and a polymerization catalyst with water and a surfactant, and mixing the macrocyclic polyester oligomer and polymerization catalyst with water and the surfactant thereby forming a suspension. In another embodiment, a process for impregnating macrocyclic polyester oligomers for polymerization includes the steps of providing a suspension of a macrocyclic polyester oligomer and a polymerization catalyst in water, applying the suspension to a base material, drying to remove water from the suspension, and pressing the dried suspension to a desired form. In yet another embodiment, a composition of macrocyclic polyester oligomer includes a macrocyclic polyester oligomer, a polymerization catalyst, and water. In yet another embodiment, a process for polymerizing macrocyclic polyester oligomers includes the steps of mixing a blend material having a macrocyclic polyester oligomer and a polymerization catalyst with water to form a mixture, applying the mixture to a base material, drying to remove water, heating to polymerize the macrocyclic polyester oligomer, and pressing the polymerized macrocyclic polyester oligomer to a desired form.
대표청구항
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1. A blend material stable at ambient conditions for at least one week, the blend material comprising: (a) a macrocyclic polyester oligomer; and (b) a polymerization catalyst, wherein the macrocyclic polyester oligomer comprises a structural repeat unit of the formula wherein A is an alkyle
1. A blend material stable at ambient conditions for at least one week, the blend material comprising: (a) a macrocyclic polyester oligomer; and (b) a polymerization catalyst, wherein the macrocyclic polyester oligomer comprises a structural repeat unit of the formula wherein A is an alkylene, or a cycloalkylene or a mono- or polyoxyalkylene group, and B is a divalent aromatic or alicyclic group. 2. The blend material of claim 1 wherein the polymerization catalyst is present in an amount from 0.01 to 10.0 mole percent of the structural repeat units of the macrocyclic polyester oligomer. 3. The blend material of claim 1 wherein the polymerization catalyst is a tin compound or a titanate compound. 4. The blend material of claim 3 wherein the tin compound is a monoalkyltin(IV) hydroxide oxide, a monoalkyltin(IV) chloride dihydroxide, a dialkyltin(IV) oxide, a bistrialkyltin(IV) oxide, a monoalkyltin(IV) trisalkoxide, a dialkyltin(IV) dialkoxide, a trialkyltin(IV) alkoxide, or a tin compound having the formula (I): or the formula (II): wherein: R2is a C1-4primary alkyl group, and R3is C1-10akyl group. 5. The blend material of claim 3 wherein the titanate compound is a titanate tetraalkoxide, a titanate compound having the formula (III): wherein: each R4is independently an alkyl group, or the two R4groups taken together form a divalent aliphatic hydrocarbon group; R5is a C2-10divalent or trivalent aliphatic hydrocarbon group; R6is a methylene or ethylene group; and n is 0 or 1, a titanate ester compound having at least one moiety of the formula (IV): wherein: each R7is independently a C2-3alkylene group; Z is O or N; R8is a C1-6alkyl group or unsubstituted or substituted phenyl group; provided when Z is O, m=n=0, and when Z is N, m=0 or 1 and m+n=1, or the formula (V): wherein: each R9is independently a C2-6alkylene group; and q is 0 or 1. 6. A composition comprising: (a) the blend material of claim 1, and (b) a fibrous substrate. 7. The blend material of claim 1 wherein the macrocyclic polyester oligomer is a macrocyclic copolyester oligomer. 8. The blend material of claim 1 wherein the macrocyclic polyester oligomer is a macrocyclic poly(1,4-butylene terephthalate) oligomer, a poly(1,3-propylene terephthalate) oligomer, a poly(1,4-cyclohexylenedimethylene terephthalate) oligomer, a poly(ethylene terephthalate) oligomer, or a poly(1,2-ethylene 2,6-naphthalenedicarboxylate) oligomer.
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