Additional Material Is A Hydrocarbon-aldehyde- Or Hydrocarbon-aldehyde-type Polymer, Condensate, Or Reactants Therefrom Patents (Class 525/492)
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Publication number: 20140023969Abstract: A positive photoresist composition includes 3 to 80 parts by mass of a novolac phenol resin (B) relative to 100 parts by mass of a cresol novolac resin (A).Type: ApplicationFiled: April 10, 2012Publication date: January 23, 2014Applicant: DIC CORPORATIONInventors: Tomoyuki Imada, Takakazu Kage, Norifumi Imaizumi
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Patent number: 8110633Abstract: A seal for a valve for use in a pharmaceutical dispensing device, which seal is formed from a blend comprising: a thermoplastic elastomer including a propylene component with isotactic crystallinity; and a polymer selected from one or more of polypropylene, polyethylene and copolymers thereof.Type: GrantFiled: September 4, 2007Date of Patent: February 7, 2012Assignee: Consort Medical PLCInventor: Daljit Ohbi
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Patent number: 7655386Abstract: An antireflective hardmask composition includes an organic solvent, and at least one polymer represented by Formulae A, B or C: In Formulae A and B, the fluorene group is unsubstituted or substituted, in Formula C, the naphthalene group is unsubstituted or substituted, n is at least 1 and is less than about 750, m is at least 1, and m+n is less than about 750, G is an aromatic ring-containing group having an alkoxy group, and R1 is methylene or includes a non-fluorene-containing aryl linking group.Type: GrantFiled: December 20, 2007Date of Patent: February 2, 2010Assignee: Cheil Industries, Inc.Inventors: Kyung Hee Hyung, Jong Seob Kim, Dong Seon Uh, Chang Il Oh, Kyong Ho Yoon, Min Soo Kim, Jin Kuk Lee
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Patent number: 7381788Abstract: Provided is a continuous production method of a polyamide with stabilized polymerization degree and good quality, particularly an aromatic-containing polyamide.Type: GrantFiled: August 27, 2003Date of Patent: June 3, 2008Assignee: Toyo Boseki Kabushiki KaishaInventors: Yasuhito Tsujii, Gaku Maruyama, Kaoru Ogawa, Yoshinori Takada, Kazuhisa Koishi, Kenta Susuki
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Patent number: 6939926Abstract: A phenol novolak resin has a peak intensity ratio of ortho-ortho bond (o-o)/ortho-para bond (o-p)/para-para bond (p-p) in a resin structure not substantially varying in each molecular weight fraction and has a weight average molecular weight (Mw) of 3000 to 20000 in terms of polystyrene, which peak intensity ratio is detected by 13C-NMR analysis. The phenol novolak resin can form both dense pattern and isolation pattern with good shapes in the formation of a fine resist pattern of not more than 0.35 ?m and has satisfactory sensitivity, definition, and focal depth range properties, and has a resin composition being uniform in each molecular weight fraction. A process for producing the phenol novolak resin, and a positive photoresist composition using the resin are also provided.Type: GrantFiled: February 9, 2004Date of Patent: September 6, 2005Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Ken Miyagi, Yasuhide Ohuchi, Atsuko Hirata, Kousuke Doi, Hidekatsu Kohara, Toshimasa Nakayama
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Patent number: 6936651Abstract: A composition for forming a crystalline thermoplastic (such as polyacetal) composition for improving compatibility using a ternary blend that includes a mineral filler and elastomer material and an article made therefrom. The mineral filler may be coated or uncoated.Type: GrantFiled: September 11, 2003Date of Patent: August 30, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Edmund Arthur Flexman, Mark Gary Weinberg
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Patent number: 6864354Abstract: The invention relates to modified polyamides, and more particularly to polyamides containing units of the type obtained by reacting a diacid with a diamine, modified with a multifunctional compound. The finished articles shaped from these polyamides or from compositions based on these polyamides have excellent mechanical properties and also a very good surface aspect. The modified polyamide according to the invention is obtained by melt-blending polyamides of different natures, in the presence of a multifunctional compound.Type: GrantFiled: June 15, 2001Date of Patent: March 8, 2005Assignee: Rhodia Engineering Plastics S.r.l.Inventors: Nicolangelo Peduto, Franco Speroni, Haichun Zhang
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Patent number: 6723801Abstract: An object of the present invention is to provide an epoxy resin composition which has high flexibility, can be molded to a thin membrane, and can become a noninflammable cured product. The present invention comprises a polyphenol compound obtained by reacting to condense phenol with bischloromethyl biphenyl or bismethoxymethyl biphenyl, removing unreacted phenol and then reacting with BCMB again, wherein the polyphenol compound has a weight-average molecular weight of 3,000 or more as determined by GPC, and using the polyphenol compound as an agent for curing an epoxy resin.Type: GrantFiled: May 31, 2002Date of Patent: April 20, 2004Assignee: Nippon Kayaku Kabushiki KaishaInventors: Yasumasa Akatsuka, Toyofumi Asano, Masahiro Imaizumi, Katsuhiko Oshimi, Syouichi Tomida
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Patent number: 5714544Abstract: An aromatic hydrocarbon formaldehyde resin novolak, useful as a raw phenolic compound for producing a curing agent and an epoxy resin, an epoxy resin composition which contains a novolak type epoxy resin derived from the above novolak resin and an epoxy resin and is therefore excellent in heat resistance, adhesion and humidity resistance, and a process for the production of a phenolic resin, which comprises reacting an aromatic hydrocarbon formaldehyde resin, phenol and formaldehyde in a novolak-forming reaction in the presence of a catalyst to prepare an aromatic hydrocarbon formaldehyde resin novolak, and treating the reaction product with steam while maintaining the temperature of a reaction mixture at 120.degree. to 195.degree. C. to remove unreacted substances and to decompose high-molecular-weight polymers.Type: GrantFiled: November 19, 1996Date of Patent: February 3, 1998Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Kazuyuki Ohya, Seiji Kita, Takaaki Fukai, Michio Ohba
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Patent number: 5614600Abstract: A fiber-reinforced resin plate comprising a fibrous base material and a matrix bonding the fibers contained in the fibrous base material, the matrix being formed by curing a resin composition comprising a highly reactive modified phenolic resin (A) prepared by polycondensing a petroleum heavy oil or pitch, a formaldehyde polymer and a phenol in the presence of an acid catalyst to thereby prepare a modified phenolic resin and-reacting the resultant modified phenolic resin with a phenol in the presence of an acid catalyst to thereby lower the molecular weight of the modified phenolic resin, and an epoxy resin (B). Also, a prepreg and a process for producing the fiber-reinforced resin plate.Type: GrantFiled: March 15, 1995Date of Patent: March 25, 1997Assignee: Kashima Oil Co., Ltd.Inventors: Masahiro Tsumura, Hiromi Miyasita, Kaneyoshi Oyama
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Patent number: 5492998Abstract: Novel polymers of general formula: ##STR1## wherein R is an alkyl or aryl group that contains an active hydrogen atom (as determined by the Zerewitinoff test); A is a spacing group having at least one carbon atom; B is a spacing group having at least two carbon atoms; and R and R' are alkyl or aryl groups. The polymer is synthesized via the Mannich pathway, involving formation of an imine intermediate.Type: GrantFiled: January 20, 1995Date of Patent: February 20, 1996Assignees: Lifesource International, Ltd., Jojani Inc.Inventor: Nicholas M. Irving
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Patent number: 4395498Abstract: High temperature phenolic resins suited for use for example in an automotive or similar brake or in a clutch, are provided by a blend of the reaction product of a phenolic compound, naphthalenic compound, and formaldehyde with selected prior art resins. The mole ratio range of naphthalenic compound: phenolic compound: formaldehyde is about 1: 1:0.8-5:1-10. Friction particles and friction elements can be prepared from said reaction product optionally being blended with said selected prior art resins. An improved method of making friction elements is also provided which uses such binder.Type: GrantFiled: September 18, 1981Date of Patent: July 26, 1983Assignee: Minnesota Mining and Manufacturing CompanyInventor: Judith L. Benham