Appeal 2007-3373
Application 10/477,363
1 Polymer additives are known to those skilled in the art. Publication,
2 ¶ 0030.
3 Examples are (1) antioxidants, such as hindered phenolic antioxidants,
4 (2) ultraviolet light absorbers (UVA's), such as hydroxyphenylbenzo-
5 triazoles, (3) hindered amine light stabilizers (HALS), (4) hydroxylamine
6 stabilizers, (5) amine oxide stabilizers, (6) benzofuranone stabilizers, and
7 (7) organic phosphorus stabilizers. Publication, ¶ 0030.
8 According to the invention, compounds containing known polymer
9 additive moieties (i.e., polymer additives) and appropriate reactive sites are
10 bound to hyperbranched or dendritic polymers through condensation or other
11 chemical reactions. Publication, ¶ 0031.
12 The invention comprises at least one polymer additive moiety and at
13 least one hyperbranched or dendritic polymer moiety. Publication, ¶ 0034.
14 Specifically, the invention relates to hyperbranched or dendritic
15 stabilizers of the formula:
16 where:
17
18 x and y are each independently greater than or equal to 1;
19 z is 1 to 5; and
20 L is independently of each other a direct bond or a chemical
21 linking group [what this means is that if y is greater
22 than 1, e.g., 2, then there are two L's each of which can
5
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