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公开(公告)号：JPH01103655A
公开(公告)日：1989-04-20
申请号：JP15398588
申请日：1988-06-22
Applicant: DAICEL CHEM
Inventor： MIHO TAKUYA
Abstract: PURPOSE:To provide a polycaprolactone resin composition which is excellent in moldability and gives a molding excellent in bending strength, dimensional stability, etc., by blending two specified polycaprolactone resins of different relative viscosities at a specified weight ratio. CONSTITUTION:A polycaprolactone resin composition is produced by blending a polycaprolactone resin of a relative viscosity of 1.5-2.8 with another polycaprolactone resin of a relative viscosity of 1.15-1.5 at a weight ratio of 85/15-30/70. The obtained resin composition has a softening point of 50-60 deg.C and excellent functions which cannot be attained when the resins are used alone and can be suitably used as a plastic clay, a medical gypsum, a splint material, or the like. When an epi-bis epoxy resin is used as part of an initiator in producing the polycaprolactone resin by the addition polymerization of a lactone monomer through ring opening, the hydrolysis resistance can be improved.
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公开(公告)号：JPS641717A
公开(公告)日：1989-01-06
申请号：JP15846787
申请日：1987-06-25
Applicant: DAICEL CHEM
Inventor： MIHO TAKUYA
Abstract: PURPOSE:To obtain the titled resin having excellent water resistance, oil resistance and bleed resistance, by using a lactone modified polyol prepared by subjecting active hydrogen-containing organic dye and a lactone to ring formation and addition polymerization. CONSTITUTION:First, 1mol. organic dye shown by the formula R-(A-X)n (R is organic dyestuff group selected from azo, anthraquinone and triarylmethane; A is polyalkylene oxide or copolymer thereof, the alkylene part of A is >=2C and A has 44-1,500mol.wt.; n is 1-6 integer; X is OH, NH2 or SH) is reacted with >=2mol. 4-8C lactone to give a colored lactone modified polyol. Then (A) the lactone modified polyol is reacted with (B) an organic diisocyanate and (C) a short-chained diol or amine as a chain extender to give the aimed polymer.
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公开(公告)号：JPS6339007B2
公开(公告)日：1988-08-03
申请号：JP6907781
申请日：1981-05-08
Applicant: DAICEL CHEM
Inventor： WATANABE MASAHARU , MIHO TAKUYA
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Patent Agency Ranking
公开(公告)号：JPS63110216A
公开(公告)日：1988-05-14
申请号：JP25536886
申请日：1986-10-27
Applicant: DAICEL CHEM
Inventor： ABE TAKASHI , MIHO TAKUYA
IPC: C08G63/08
Abstract: PURPOSE:To obtain a lactone polyol having excellent hydrolytic resistance, by subjecting lactones to ring opening polymerization using a higher alkanediol and alicyclic diol as an initiator. CONSTITUTION:Lactones are subjected to ring opening polymerization using a >=6C higher alkanediol, e.g. 1,6-hexanediol, 2,2,4-trimethyl-1,3-pentanediol, etc., and/or alicyclic diol, e.g. 1,4-cyclohexanedimethanol, etc., as an initiator to afford the aimed polyol expressed by the formula (Y is a residue obtained by ring opening polymerization of 4-8C lactones; R is a group obtained by removing two terminal OH groups from the initiator; n and m are numbers of added mol; n+m is 2-50).
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公开(公告)号：JPS6381124A
公开(公告)日：1988-04-12
申请号：JP22552786
申请日：1986-09-24
Applicant: DAICEL CHEM
Inventor： ISOBE TOMOHISA , MIHO TAKUYA
IPC: C08G63/08
Abstract: PURPOSE:To obtain the titled novel diol, having improved flame retardancy and suitable as a raw material for polyurethane polymers in adhesives, synthetic leathers, etc., coating materials, etc., by ring opening polymerization of bis(bromomethyl) propanediol with specific lactones. CONSTITUTION:(A) 1mol 2,2-bis(bromomethyl)1,3-propanediol expressed by formula I is dissolved in (B) 2-15mol, 4-8C lactones, e.g. gamma-butyrolactone, etc., and preferably 0.05-1,000ppm catalyst, e.g. tetrabutyl titanate, etc., is added to carry out ring opening polymerization, e.g. at 50-230 deg.C under ordinary pressure in nitrogen atmosphere, and afford the aimed diol expressed by formula II (Y is 4-8C lactones; n+m is 2-15).
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公开(公告)号：JPS6127947A
公开(公告)日：1986-02-07
申请号：JP14691784
申请日：1984-07-17
Applicant: Daicel Chem Ind Ltd
Inventor： MIHO TAKUYA , OTANI KISAKU
CPC classification number: Y02P20/52
Abstract: PURPOSE: To obtain the titled diol having improved flame retardance, by adding an excess amount of a 4W8C lactone to an adduct of 2,2'bis(4-hydroxyl-3,5-dibromophenyl)propane with an alkylene oxide.
CONSTITUTION: 1mol adduct 2,2'bis(4-hydroxy-3,5-dibromophenyl)propane shown by the formula I (R is H, or methyl; m and n are 1-2) with an alkylene oxide is reacted with ≥2mol 4W8C lactone (e.g., γ-butyrolactone) to give a novel lactone modified diol shown by the formula II (Y is residue obtained by removal of ester bond from 4W8C lactone; p and q are constants fixed by amount of lactone). The lactone modified diol is different from a type to add a flame retardant, and as it has a flame-retardant component linked in the molecule, it neither causes blooming nor damages other characteristics.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：为了获得具有改善的阻燃性的标题二醇，通过向2,2'-双（4-羟基-3,5-二溴苯基）丙烷与烯化氧的加合物中加入过量的4-8C内酯。 构成：式I所示的1摩尔加合物2,2'-双（4-羟基-3,5-二溴苯基）丙烷（R为H，或甲基; m和n为1-2）与烯化氧反应， = 2mol 4-8C内酯（例如γ-丁内酯），得到式II所示的新型内酯改性二醇（Y为通过从4-8C内酯除去酯键而得到的残基; p和q是以 内酯）。 内酯改性二醇不同于添加阻燃剂的类型，并且由于其在分子中具有阻燃性成分，因此既不引起起霜也不损害其它特性。
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公开(公告)号：JPS614717A
公开(公告)日：1986-01-10
申请号：JP12520684
申请日：1984-06-20
Applicant: DAICEL CHEM
Inventor： MIHO TAKUYA , FUJII TATSUMI , NAKANISHI MICHIO
IPC: C08G18/00 , C08G18/42 , C09J175/00
Abstract: PURPOSE:To obtain polyurethane improved in adhesiveness as a hot melt adhesive, by specifying the content of a polycaprolactone polyol component in a polyurethane resin formed of an organic polyisocyanate. CONSTITUTION:The content of a polycaprolactone polyol component in a polyurethane resin obtained by reacting polycaprolactone polyol of a number-average MW of 1,000-100,000 with an organic polyisocyanate is specified at 60-98wt%. When this content is below 60wt%, crystallinity inherent in the polycaprolactone polyol is completely lost. On the contrary, when it is above 98wt%, the characteristics of adhesiveness can not be improved. The polycaprolactone polyol is obtained by polymerizing, by ring opening, epsilon-caprolactone by using an initiator such as a polyalcohol. Examples of the organic polyisocyanates used include 2,4- and 2,6-tolylene diisocyanates.
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公开(公告)号：JPS6023418A
公开(公告)日：1985-02-06
申请号：JP13093583
申请日：1983-07-20
Applicant: DAICEL CHEM
Inventor： MIHO TAKUYA , OOTANI KISAKU
Abstract: PURPOSE:To obtain the titled novel polymer poviding a polyurethane polymer having improved physical properties, and improved workability, by polymerizing a lactone through ring opening by the use of a polybutadiene polyol as an initiator. CONSTITUTION:(B) A lactone (preferably epsilon-caprolactone, etc.) is polymerized through ring opening in the presence of a catalyst such as an organotin compound, etc. by the use of (A) a polybutadiene polyol (preferably hydroxyl terminal polybutadiene oligomer having 35-70 hydroxyl number, etc.), to give the desired polymer. The reaction is preferably carried out at 160-180 deg.C.
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