Water-soluble surfactant compositions

• US 20030078307A1
• Filed: 05/30/2002
• Published: 04/24/2003
• Est. Priority Date: 05/30/2001
• Status: Abandoned Application

• Current Assignee: Nissin Chemical Industry Co., Ltd. (Shin-Etsu Chemical Company Limited)
• Original Assignee: Nissin Chemical Industry Co., Ltd. (Shin-Etsu Chemical Company Limited)
• Inventors: Nakamura, Norio, Shinohara, Shuichiro, Mizusaki, Toru
• Application Number:
  US10/157,081
• Publication Number:
  US 20030078307A1
• Time in Patent Office: Days
• US Class Current: 516/113
• CPC Class Codes: C08G 2650/58 Ethylene oxide or propylene oxide copolymers, e.g. pluronics
• CPC Class Codes: C08G 2650/60 containing acetylenic group
• CPC Class Codes: C08G 65/2609 containing aliphatic hydroxyl groups
• CPC Class Codes: C08L 2666/22 Macromolecular compounds not provided for in C08L2666/16 - C08L2666/20
• CPC Class Codes: C08L 71/02 Polyalkylene oxides
• CPC Class Codes: C09D 11/03 characterised by features other than the chemical nature of the binder
• CPC Class Codes: C09D 5/027 Dispersing agents anti-settling agents C09D7/45
• CPC Class Codes: C09K 23/018 Mixtures of two or more different organic oxygen-containing compounds

Abstract

Water-soluble surfactant compositions comprising (A) 2,5,8,11-tetramethyl-6-dodecyne-5,8-diol and/or ethoxylate thereof and (B) a polyoxy(ethylene-propylene) block polymer and exhibiting a dynamic surface tension of up to 50 mN/m both at 1 Hz and 10 Hz in a 0.1 wt % aqueous solution thereof have such surface tension-reducing effects that when added to inks and paper coatings, they provide a surface tension comparable to those of fluorochemical and silicone surfactants. Because of a low dynamic surface tension, the surfactant compositions develop excellent substrate wetting, substrate penetrating and anti-foaming capabilities to comply with high-speed printing and coating, and overcome the environmental problem.

Claims

1. A water-soluble surfactant composition comprising

(A) 10 to 95% by weight of an acetylene glycol of the following formula (1):

and/or an acetylene glycol ethoxylate of the following formula (2);

wherein m and n are positive numbers and the sum of m+n is from 2 to 30, and

(B) 5 to 90% by weight of at least one polymer selected from polyoxy(ethylene-propylene) block polymers of the following formula (3);

HO(C₂H₄O)_w(C₃H₆O)_x(C₂H₄O)_yH 

 

(3)

wherein w, x and y are positive numbers, having a weight average molecular weight of 1,500 to 10,000, an ethylene oxide content of 35 to 90% by weight and a propylene oxide content of 10 to 65% by weight,

the composition exhibiting a dynamic surface tension of up to 50 mN/m both at 1 Hz and 10 Hz in a 0.1 wt % aqueous solution thereof.

2. The composition of claim 1 wherein in formula (2), m+n is from 4 to 12.

3. The composition of claim 1 which contains 40 to 70% by weight of component (A) and 5 to 50% by weight of component (B).

4. The composition of claim 1 wherein component (B) is selected from polyoxy(ethylene-propylene) block polymers represented by the following formulae:

HO(C₂H₄O)_w(C₃H₆O)₂₀ (C₂H₄O)_yH wherein w+y=27,

HO(C₂H₄O)_w(C₃H₆O)₃₀(C₂H₄O)_yH wherein w+y=160,

HO(C₂H₄O)_w(C₃H₆O)₃₅(C₂H₄O)_yH wherein w+y=30,

HO(C₂H₄O)_w(C₃H₆O)₃₅(C₂H₄O)_yH wherein w+y=48, and

HO(C₂H₄O)_w(C₃H₆O)₂₀(C₂H₄O)_yH wherein w+y=155.

5. The composition of claim 1 further comprising (C) up to 25% by weight of a component selected from the group consisting of water, water-soluble organic solvents, and acetylene glycols and ethoxylates thereof other than formulae (1) and (2).

6. The composition of claim 1 which exhibits a dynamic surface tension of 10 to 50 mN/m both at 1 Hz and 10 Hz in a 0.1 wt % aqueous solution thereof.