Appeal 2007-0691
Application 10/465,423
1 The Examiner's Answer discusses the other two prior art patents, viz.,
2 Phillips and Reyes-Gavilan.
3 The Examiner found that Chasan describes lubricant compositions
4 which are stabilized against deleterious effects of heat and oxygen.
5 Answer 4; col. 1:3-4.
6 The lubricant compositions, like those of Ciba, may be used in two-
7 stroke engines. Col. 1:13; Ciba Published Application 1 [¶ 0011].
8 The Examiner further found that the lubricant is made from (1) an oil,
9 (2) a triazole derivative, and (3) a succinic acid derivative. Answer 4; col.
10 2:19 through col. 3:15.
11 The formula of the triazole is shown as Formula I. Col. 2:35.
12 R1 and R2 in the formula may be hydrogen or C1-C10 alkyl, the latter
13 including 2-ethylhexyl. Answer 4; col. 2:40-41.
14 The most preferred triazole is 1-(bis-(2-ethylhexyl)aminomethyl)-
15 1,2,4-triazole, which is the same as 1-(di-(2-ethylhexyl)aminomethyl)-1,2,4-
16 triazole (the bis and the di meaning the same thing). The triazole is sold by
17 Ciba as IRGAMET® 30. Col. 4:60-65. Thus, Chasan describes as its
18 preferred triazole the triazole of the claims on appeal.
19 The Examiner still further found that Chasan teaches that various
20 other additives can be added to the Chasan lubricant composition.
21 Answer 4; col. 6:12 through 9:5.
22 The Examiner notes that Chasan teaches the use of sulphurized
23 vegetable oils as a sulfur-containing anti-wear and extreme pressure
24 additive. Answer 4; col. 8:66 through col. 9:5, with sulphurized vegetable
8
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