Appeal No. 1998-0762
Application No. 08/379,576
APPEALED SUBJECT MATTER
The subject matter on appeal is directed to laundry
detergent compositions. Claim 1 is illustrative of the
subject matter on appeal and reads as follows:
1. A laundry detergent composition comprising
(a) from 7% to 20% by weight of a crystalline
layered
silicate builder material of formula LMSi O .yH O
X 2X+1 2
wherein L is an alkali metal, and M is sodium or
hydrogen, x is a number from 1.9 to 4 and y is a
number from 0 to 20;
(b) from 3% to 40% by weight of an alkali metal
percarbonate bleach; and
(c) from 0.05% to 10% by weight of ethylenediamine -N,
N'- disuccinic acid, or alkali metal, alkaline
earth,
ammonium or substituted ammonium salts thereof, or
mixtures thereof.
PRIOR ART
In support of his rejections, the examiner relies on the
following prior art references:
Gray 4,664,837 May
12, 1987
2
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