(Meth)acrylic esters of monoalkoxylated polyols, and production thereof

• US 7,772,420 B2
• Filed: 06/30/2004
• Issued: 08/10/2010
• Est. Priority Date: 07/10/2003
• Status: Expired due to Fees

• Current Assignee: BASF AG (BASF SE)
• Original Assignee: BASF AG (BASF SE)
• Inventors: Elliott, Mark, Dietsche, Frank, Riegel, Ulrich, Schwalm, Reinhold, Daniel, Thomas, Hermeling, Dieter
• Primary Examiner(s): Eashoo; Mark
• Assistant Examiner(s): PEPITONE, MICHAEL F
• Application Number:
  US10/562,239
• Publication Number:
  US 20060155057A1
• Time in Patent Office: 2,232 Days
• Field of Search: 524/916, 525/418, 525/451, 528/271, 528/300, 528/272, 528/361, 560/205, 560/224
• US Class Current: 560/224
• CPC Class Codes: A61L 15/60 Liquid-swellable gel-forming materials, e.g. super-absorbents
• CPC Class Codes: C08G 65/2606 containing hydroxyl groups
• CPC Class Codes: C08G 65/332 containing carboxyl groups, or halides, or esters thereof
• CPC Class Codes: C08G 65/3322 acyclic
• CPC Class Codes: Y10S 524/916 Hydrogel compositions

Abstract

Disclosed are novel (meth)acrylic esters of monoalkoxylated polyols, a process for their preparation and their use for preparing crosslinked swellable hydrogel-forming polymers and crosslinked swellable hydrogel-forming polymers.

Claims

1. (Meth)acrylic esters of monoalkoxylated polyols of a general formula (I)

2. (Meth)acrylic esters of monoalkoxylated polyols of claim 1 wherein

R¹ is hydrogen or methyl,

n is 2 or 3,

m is an integer from 2 to 50,

A is C₃ to C₁₀ alk(n+1)yl, and

B represents

3. (Meth)acrylic esters of monoalkoxylated polyols of claim 1 wherein

R¹ is hydrogen or methyl,

n is 2,

m is an integer from 3 to 30,

A is C₃ to C₆ alk(n+1)yl, and

B is

4. (Meth)acrylic esters of monoalkoxylated polyols of claim 1 wherein the polyol is glycerol.

8. (Meth)acrylic esters of monoalkoxylated polyols of claim 2 wherein the polyol is glycerol.

9. (Meth)acrylic esters of monoalkoxylated polyols of claim 3 wherein the polyol is glycerol.

10. A swellable hydrogel-forming polymer comprising a copolymerized (meth)acrylic ester of general formula (I) according to claim 2 as an internal crosslinker.

11. A swellable hydrogel-forming polymer comprising a copolymerized (meth)acrylic ester of general formula (I) according to claim 3 as an internal crosslinker.

12. A swellable hydrogel-forming polymer comprising a copolymerized (meth)acrylic ester of general formula (I) according to claim 4 as an internal crosslinker.

13. A hygiene article comprising a crosslinked swellable hydrogel-forming polymer of claim 10.

14. A hygiene article comprising a crosslinked swellable hydrogel-forming polymer of claim 11.

15. A hygiene article comprising a crosslinked swellable hydrogel-forming polymer of claim 12.

5. A swellable hydrogel-forming polymer comprising a copolymerized (meth)acrylic ester of general formula (I)

7. A hygiene article comprising a crosslinked swellable hydrogel-forming polymer of claim 5.

6. A process for preparing crosslinked swellable hydrogel-forming polymers which comprises polymerizing an aqueous mixture comprising a hydrophilic monomer, optionally at least one further monoethylenically unsaturated compound, at least one (meth)acrylic ester of a monoalkoxylated polyol of general formula (I)