-
1.发明授权
公开(公告)号：US5011499A
公开(公告)日：1991-04-30
申请号：US332535
申请日：1989-04-03
摘要： A tanning agent formulation obtained by reacting 1 mole of an aliphatic .omega.,.omega.'- dialdehyde having 2-8 carbon atoms in the form of an aqueous solution of about 3-60% strength with about 0.2-4 moles of a hydroxy compound of the formulaR.sub.1 --O--[(C.sub.2 H.sub.4 O).sub.x --(C.sub.3 H.sub.6 O).sub.y --(C.sub.4 H.sub.8 O).sub.z ].sub.n --Hwherebyn is an integer from 0 to 10,x+y+z is an integer from 1 to 20, wherein the alkoxy groups may be arranged in any order, andR.sub.1 is H, C.sub.1 -C.sub.12 alkyl, or C.sub.1 C.sub.12 alkylhaving one or more hydroxyl groups,wherein n is not 0 for R.sub.1 =His disclosed. Pelts pretanned with the formulation have improved mold resistance and are free of tanning metal salts and formaldehyde.
摘要翻译： 通过使1摩尔具有约3-60％强度的水溶液形式的2-8个碳原子的脂族ω，ω-二醛与约0.2-4摩尔的羟基化合物反应获得的鞣制剂制剂 式R 1 -O - [（C 2 H 4 O）x - （C 3 H 6 O）y - （C 4 H 8 O）z] n H，其中n为0至10的整数，x + y + z为1至20的整数，其中烷氧基 以任何顺序排列，R1为H，C1-C12烷基或具有一个或多个羟基的C 1 -C 12烷基，其中n不为R 1 = H。 用制剂预处理的胶囊具有改善的耐模压性，并且不含鞣制金属盐和甲醛。
-
2.再颁专利
公开(公告)号：USRE34986E
公开(公告)日：1995-07-04
申请号：US157620
申请日：1993-11-24
摘要： A tanning agent formulation obtained by reacting 1 mole of an aliphatic .omega.,.omega.'-dialdehyde having 2-8 carbon atoms in the form of an aqueous solution of about 3-60% strength with about 0.2-4 moles of a hydroxy compound of the formulaR.sub.1 --O--[(C.sub.2 H.sub.4 O).sub.x --(C.sub.3 H.sub.6 O).sub.y --C.sub.4 H.sub.8 O).sub.z].sub.n --Hwherebyn is an integer from 0 to 10,x+y+z is an integer from 1 to 20, wherein the alkoxy groups may be arranged in any order, andR.sub.1 is H, C.sub.1 -C.sub.12 alkyl, or C.sub.1 C.sub.12 alkylhaving one or more hydroxyl groups,wherein n is not 0 for R.sub.1 .dbd.His disclosed. Pelts pretanned with the formulation have improved mold resistance and are free of tanning metal salts and formaldehyde.
-
搜索结果
2 条记录 (耗时 0.017 秒)
