Fluorinated acrylic monomers containing urethane groups and their polymers

• US 5,446,118 A
• Filed: 09/22/1994
• Issued: 08/29/1995
• Est. Priority Date: 08/11/1994
• Status: Expired due to Term

• Current Assignee: W. L. Gore & Associates (W.L. Gore & Associates)
• Original Assignee: W. L. Gore & Associates (W.L. Gore & Associates)
• Inventors: Thompson, Robert, Shen, Ya X.
• Primary Examiner(s): Schofer, Joseph L.
• Assistant Examiner(s): SAROFIM, NABIL F
• Application Number:
  US08/310,823
• Time in Patent Office: 341 Days
• Field of Search: 560/26, 526/245
• US Class Current: 526/245
• CPC Class Codes: C07C 271/16 to carbon atoms of hydrocarbon radicals substituted by singly-bound oxygen atoms
• CPC Class Codes: C08F 20/24 containing perhaloalkyl radicals
• CPC Class Codes: C08F 20/36 containing oxygen in addition to the carboxy oxygen , e.g. 2-N-morpholinoethyl (meth)acrylate or 2-isocyanatoethyl (meth)acrylate

Abstract

A composition of the formula: ##STR1## is disclosed. Polymers of the composition are useful to coat onto substrates to impart oil and water repellency.

Claims

1. A polymer comprising recurring units of a monomer of the formula

wherein:

R is H or --CH₃ ;

R'"'"' is alkyl of 2-8 carbon atoms; and

R" is fluorinated alkyl of 8-20 carbon atoms.

2. The polymer of claim 1 wherein R" is alkyl perfluoroalkyl of the formula --R--R₁ wherein R in --R--R₁ is alkyl of 1-2 carbon atoms and R₁ is perfluoroalkyl of 6-14 carbon atoms.

3. The polymer of claim 2 wherein R in --R--R₁ is --CH₂ CH₂ --.

4. A polymer of claim 1 wherein comonomer units are present which are units of an alkyl acrylate or methacrylate.

5. A polymer of claim 2 wherein comonomer units are present which are units of an alkyl acrylate or methacrylate.

6. A polymer of claim 3 wherein comonomer units are present which are units of an alkyl acrylate or methacrylate.