CAS No.26375-23-5,POLYURETHANE Y-218 Suppliers

CAS Number:
26375-23-5
Name:
POLYURETHANE Y-218
Formula:
(C₁₅H₁₀N₂O₂•C₆H₁₀O₄•C₄H₁₀O₂)_x
Molecular Structure:
Synonyms:
TPU 12K;Daltomold 435;CA 280;Reflex 217;Vitur T 261;Kuramiron U 1198;Hexanedioic acid,polymers,polymer with 1,4-butanediol and 1,1'-methylenebis[4-isocyanatobenzene];Hexanedioic acid, polymer with 1,4-butanediol and 1,1-methylenebis4-isocyanatobenzene;TEXIN 445D;Y 218;PANDEX;HEXANEDIOIC ACID, POLYMER with 1,4-BUTANEDIOL and 1,1′-METHYLENEBIS(4-ISOCYANATOBENZENE);TPU 10M;
Molecular Weight:
486.5143
Boiling Point:
373.4 °C at 760 mmHg
Flash Point:
154 °C
Safety:
Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits very toxic fumes of CN⁻ and NO_x.Details
Deleted CAS:
79230-10-7

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Injection moldable polyurethanes: Injection moldable polyurethanes. Holloway, John Ambrose (Goodrich, B. F., Co., USA). U.S. US 4051111 27 Sep 1977, 5 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08G018-28. NCL: 260075000NP. APPLICATION: US 76-716195 20 Aug 1976. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) Polyurethanes having good stiffness, low temp. impact resistance, and high heat distortion temps. were based on polyester diols having mol. wt. >2800, aliph. diol chain extender, and an arom. diisocyanate, obtained at reaction temps. <160°. Thus, adipic acid-1,4-butanediol-p,p'-diphenylmethane diisocyanate copolymer (I) [26375-23-5] prepd. with polyol having a mol. wt. 3100 at max. temp. 135° had a Vicat heat distortion temp. 40° higher and 20° low temp. impact improvement when compared with I prepd. at a max. temp. 220°.

Leather substitutes with stereopattern: Leather substitutes with stereopattern. Nishimura, Takeo; Sano, Hideo (Kuraray Co., Ltd., Japan). Japan. Kokai JP 52155677 24 Dec 1977 Showa, 6 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: B29D027-00. APPLICATION: JP 76-73625 21 Jun 1976. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Fabrication and Uses) Leather substitutes, with stereopattern, were prepd. by embossing a colored multiporous PVC [9002-86-2] or urethane rubber sheets. Thus, a nylon nonwoven fabric was immersed in a mixt. contg. 15% elastomeric adipic acid-1,4-butanediol-4,4'-diphenylmethane diisocyanate copolymer (I) [26375-23-5] and 6% red pigment, coated with a mixt. contg. 10% I and 2% PVC, immersed in a coagulating bath, and embossed 28 s at 135° and 16 kg/cm2 to give a snakeskinlike leather substitute.

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