Process for synthesizing quinonediazide ester and positive working photoresist containing the same
申请人:FUJI PHOTO FILM CO., LTD.
公开号:EP0706089A2
公开(公告)日:1996-04-10
A process for synthesizing a quinonediazide ester is disclosed in which the esterification reaction of a polyhydroxy compound with 1,2-naphthoquinonediazide-5-(and/or -4-)sulfonyl chloride is carried out in the presence of a base catalyst comprising a basic compound represented by formula (I) or (II):
wherein R₁ to R₁₅ are defined in the disclosure. A positive working photoresist containing the ester is also disclosed. The process is capable of highly selectively yielding the desired photosensitive material containing specific unreacted hydroxyl group(s). The photoresist has high resolving power with reduced film thickness dependence of the resolving power, is less apt to leave a development residue, and has excellent storage stability for prolonged period of time.
本发明公开了一种合成喹酮噻嗪酯的工艺,在该工艺中,多羟基化合物与 1,2-萘醌噻嗪-5-(和/或-4-)磺酰氯的酯化反应是在碱催化剂存在下进行的,碱催化剂包括由式 (I) 或 (II) 所代表的碱化合物:
其中 R₁至 R₁₅的定义见公开内容。此外,还公开了一种含有该酯的正工作光刻胶。该工艺能够高选择性地得到所需的光敏材料,其中含有特定的未反应羟基。这种光刻胶具有很高的分辨力,同时降低了膜厚度对分辨力的依赖性,不易留下显影残留物,并且在长时间储存时具有极佳的稳定性。
Oligomeric polyol compositions
申请人:Presidium USA, Inc.
公开号:US10053533B1
公开(公告)日:2018-08-21
There is provided an oligomeric polyol composition having (a) an oligomeric network containing residues of at least one polyhydroxylated aromatic compound and residues of at least one polyol having at least three hydroxyl groups; and (b) a plurality of peripheral groups having one or more pendant hydroxyl groups bound to the oligomeric network by a plurality of linking units. The residues of the polyol may optionally contain one or more oxygen ether groups, one or more amino ether groups, or both one or more oxygen ether groups and one or more amino ether groups. Reaction of the oligomeric polyols with isocyanate monomers affords a new class of polyurethanes having superior heat and water resistance. The new polyurethanes exhibit lower peak exotherms, typically less than 250° F. during in-mold polymerization. Articles prepared from polyurethanes incorporating such oligomeric polyol compositions exhibit flexural strengths and moduli in excess of 10,000 psi and 400,000 psi respectively, and outstanding green strength.
Method of preparing oligomeric polyol compositions
申请人:Presidium USA, Inc
公开号:US11066512B2
公开(公告)日:2021-07-20
There is provided an oligomeric polyol composition having (a) an oligomeric network containing residues of at least one polyhydroxylated aromatic compound and residues of at least one polyol having at least three hydroxyl groups; and (b) a plurality of peripheral groups having one or more pendant hydroxyl groups bound to the oligomeric network by a plurality of linking units. The residues of the polyol may optionally contain one or more oxygen ether groups, one or more amino ether groups, or both of one or more oxygen ether groups and one or more amino ether groups. Reaction of the oligomeric polyols with isocyanate monomers affords a new class of polyurethanes having superior heat and water resistance. The new polyurethanes exhibit lower peak exotherms, typically less than 250° F. during in-mold polymerization. Articles prepared from polyurethanes incorporating such oligomeric polyol compositions exhibit flexural strengths and moduli in excess of 10,000 psi and 400,000 psi respectively, and outstanding green strength.
Polyurethanes prepared from oligomeric polyol compositions and polyisocyanates
申请人:Presidium USA, Inc
公开号:US11072679B2
公开(公告)日:2021-07-27
There is provided an oligomeric polyol composition having (a) an oligomeric network containing residues of at least one polyhydroxylated aromatic compound and residues of at least one polyol having at least three hydroxyl groups; and (b) a plurality of peripheral groups having one or more pendant hydroxyl groups bound to the oligomeric network by a plurality of linking units. The residues of the polyol may optionally contain one or more oxygen ether groups, one or more amino ether groups, or both of one or more oxygen ether groups and one or more amino ether groups. Reaction of the oligomeric polyols with isocyanate monomers affords a new class of polyurethanes having superior heat and water resistance. The new polyurethanes exhibit lower peak exotherms, typically less than 250° F. during in-mold polymerization. Articles prepared from polyurethanes incorporating such oligomeric polyol compositions exhibit flexural strengths and moduli in excess of 10,000 psi and 400,000 psi respectively, and outstanding green strength.
Method of preparing polyurethanes from oligomeric polyol compositions and polyisocyanates
申请人:Presidium USA, Inc
公开号:US11078325B2
公开(公告)日:2021-08-03
There is provided an oligomeric polyol composition having (a) an oligomeric network containing residues of at least one polyhydroxylated aromatic compound and residues of at least one polyol having at least three hydroxyl groups; and (b) a plurality of peripheral groups having one or more pendant hydroxyl groups bound to the oligomeric network by a plurality of linking units. The residues of the polyol may optionally contain one or more oxygen ether groups, one or more amino ether groups, or both of one or more oxygen ether groups and one or more amino ether groups. Reaction of the oligomeric polyols with isocyanate monomers affords a new class of polyurethanes having superior heat and water resistance. The new polyurethanes exhibit lower peak exotherms, typically less than 250° F. during in-mold polymerization. Articles prepared from polyurethanes incorporating such oligomeric polyol compositions exhibit flexural strengths and moduli in excess of 10,000 psi and 400,000 psi respectively, and outstanding green strength.