摘要:
A thermoset polyurethane resin having the properties: (i) the Shore A surface hardness is in the range of 50 to 85, (ii) the flexural modulus is in the range of 8 to 80 MPa, (iii) the elongation is in the range of 130 to 600 %, and (iv) no melt mark is observed after exposure to an atmosphere of 110°C for 1000 hours.
摘要:
The present invention is directed to an eyewear material comprising a polyurethane resin produced by allowing a polyisocyanate component to react with an active hydrogen group-containing component, wherein the polyisocyanate component comprises 1,4-bis(isocyanatomethyl)cyclohexane comprising 70 mol% or more and 95 mol% or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.1 ppm or more and 300 ppm or less of a compound represented by formula (1) below:
and/or a polyisocyanate composition produced by modifying the 1,4-bis(isocyanatomethyl)cyclohexane and contains at least one functional group of (a) to (e) below: (a) an isocyanurate group, (b) an allophanate group, (c) a biuret group, (d) a urethane group, and (e) a urea group.
摘要:
The microcellular polyurethane elastomer of the present invention has
(1) an overall density (D) of 100 kg/m 3 or more but 900 kg/m 3 or less, and (2) overall density (D) and compression set (CS2, unit: %) satisfying the relationship shown by the following equation (1): and CS2 ≤ 0.00008*D 2 - 0.091*D + 42 overall density (D) and cell diameter (X, unit: µm) on the skin surface satisfying the relationship shown by the following equation (2): X ≤ 120e -0.0015 D
摘要翻译:本发明的微孔聚氨酯弹性体具有(1)总密度(D)为100kg / m 3以上且900kg / m 3以下,(2)总密度(D)和压缩 设置(CS2,单位:%),满足以下等式(1)所示的关系:&lt; DF NUM =“(1)”> CS2≤0.00008* D 2 - 0.091 * D + 42 DF> 密度(D)和细胞直径(X,单位:μm),满足以下等式(2)所示的关系:X≤120e<-0.0015>
摘要:
A thermoset polyurethane resin having the properties: (i) the Shore A surface hardness is in the range of 50 to 85, (ii) the flexural modulus is in the range of 8 to 80 MPa, (iii) the elongation is in the range of 130 to 600 %, and (iv) no melt mark is observed after exposure to an atmosphere of 110°C for 1000 hours.