Appeal 2007-2863
Application 10/934,507
1 over 2, a total degree of unsaturation of less than 0.05 meq/g
2 and a number-average molecular weight of from 8000 to 20000,
3 [2] with a polyisocyanate compound, and
4 [B] a curing agent (ii) comprising as curing components
5 [1] a polyoxytetramethylene polyol (a) and
6 [2] a chain extender (b) having two active-
7 hydrogen-containing groups and having a number-average
8 molecular weight of not more than 500,
9 wherein a relation of hardness (H) by a type A durometer
10 defined by JIS K 6253 and a tensile strength (X) (MPa) defined
11 by JIS K 6251, of a polyurethane elastomer obtained by curing
12 the composition is represented by X>H/10.
13
14 English language copies of JIS K 6253 and JIS K 6251 did not appear
15 in the Evidence Appendix of the Appeal Brief. We understand JIS K 6253
16 to be a testing method, similar to an ASTM test, for measuring hardness.
17 We understand JIS K 6251 to be a testing method for measuring tensile
18 strength. We understand the formula X>H/10 to be saying that tensile
19 strength when measured by JIS K 6251 will be greater than 1/10 of hardness
20 when measured by JIS K 6253.
21 The active-hydrogen-containing groups of the chain extender can
22 be hydroxyl groups [―OH] or amino groups [―NH2]. Specification,
23 page 11:25-27.
24 Saito (WO)
25 The Examiner relies on Example 1 of Saito.
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