Title:
高融点ポリイソシアネートベース発泡固体ポリウレタンエラストマー並びにその製造方法および使用
Document Type and Number:
Japanese Patent JP5258215
Kind Code:
B2
Abstract:
Casting elastomer (I) comprises: an isocyanate prepolymer of a polyisocyanate comprising 1,5-naphthalene diisocyanate, paraphenylene diisocyanate and 3,3'-dimethyl-4,4'-biphenyldiisocyanate, and a polyol mixture of (b1) 50-85 mol.% of alpha -hydro-gamma -hydroxy-poly(oxytetramethylene) and (b2) 15-50 mol.% of alpha -hydro-gamma -hydroxy-poly(oxypropylene-1,2) and/or alpha -hydro-gamma -hydroxy poly(oxypropylene-1,2-co-oxyethylene); at least a chain elongator comprising aliphatic diol, trifunctional polyol, polyol (b1), polyol (b2) and/or water or aromatic diamine; and optionally auxiliary agent and additive. Casting elastomer (I) comprises: an isocyanate prepolymer of a high-melting polyisocyanate comprising 1,5-naphthalene diisocyanate, paraphenylene diisocyanate and 3,3'-dimethyl-4,4'-biphenyldiisocyanate, and a polyol mixture of (b1) 50-85 mol.% of alpha -hydro-gamma -hydroxy-poly(oxytetramethylene) with a molecular weight of 500-5000 g/mol and a hydroxyl functionality of 2 and (b2) 15-50 mol.% of alpha -hydro-gamma -hydroxy-poly(oxypropylene-1,2) and/or alpha -hydro-gamma -hydroxy poly(oxypropylene-1,2-co-oxyethylene) with a molecular weight of 900-4000 g/mol and hydroxyl functionality of 1.9-2.7, where the hydroxyl number of the polyol mixture is 36-90 mg potassium hydroxide/g; at least a chain elongator comprising aliphatic diol with two, preferably primary hydroxyl group and a number average molecular weight of 62-202 g/mol, trifunctional polyol, polyol (b1), polyol (b2) and/or water or aromatic diamine; and optionally auxiliary agent and additive, where the classification number (molar ratio of isocyanate group to Zerewitinoff active groups of all components) is 1.04-1.25 and the quotient is -30[deg] C to 110[deg] C and the measured storage module (G') (according to DIN EN ISO 6721-1) at 110[deg] C is 0.8-2. An independent claim is included for preparing (I) after the prepolymer process, comprising reacting the high-melting polyisocyanate with the polyol mixture to form an isocyanate prepolymer and adding the chain elongator to the isocyanate prepolymer to form (I).
Inventors:
Hartmut Neftsgar
James Michael Burns
Martin Dietrich
Dirk Veovsky
James Michael Burns
Martin Dietrich
Dirk Veovsky
Application Number:
JP2007172305A
Publication Date:
August 07, 2013
Filing Date:
June 29, 2007
Export Citation:
Assignee:
Bayer MaterialScience AG
International Classes:
C08G18/10; C08G18/48; C08G18/76; F16F1/36; F16F15/08
Domestic Patent References:
| JP2001255801A | ||||
| JP2001500167A | ||||
| JP59102950A | ||||
| JP46003847A | ||||
| JP55050016A | ||||
| JP2006002054A | ||||
| JP2249555A | ||||
| JP63270723A | ||||
| JP4213316A | ||||
| JP6213283A | ||||
| JP11292946A |
Foreign References:
| WO2001018086A1 |
Attorney, Agent or Firm:
Mitsuo Tanaka
Takuji Yamada
Yasuo Shibata
Kenichi Morizumi
Takuji Yamada
Yasuo Shibata
Kenichi Morizumi