Nylon terpolymer crosslinked with melamine formaldehyde for coating sewing threads

• US 4,992,515 A
• Filed: 01/09/1990
• Issued: 02/12/1991
• Est. Priority Date: 01/09/1990
• Status: Expired due to Fees

• Current Assignee: Shakespeare Company LLC (Newell Brands Inc.)
• Original Assignee: Shakespeare Company LLC (Newell Brands Inc.)
• Inventors: Ballard, Larry
• Primary Examiner(s): Bleutge, John C.
• Assistant Examiner(s): Clark, W. R. H.
• Application Number:
  US07/462,630
• Time in Patent Office: 399 Days
• Field of Search: 525/428, 528/314
• US Class Current: 525/428
• CPC Class Codes: C08L 2666/16 Addition or condensation polymers of aldehydes or ketones according to C08L59/00 - C08L61/00; Derivatives thereof
• CPC Class Codes: C08L 61/04 Condensation polymers of aldehydes or ketones with phenols only
• CPC Class Codes: C08L 77/00 Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain of polyhydrazides C08L79/06; of polyamideimides or polyamide acids C08L79/08; Compositions of derivatives of such polymers
• CPC Class Codes: D06M 15/423 Amino-aldehyde resins
• CPC Class Codes: D06M 15/59 Polyamides; Polyimides

Abstract

A cross-linkable nylon composition and is useful for coated sewing threads. The compositions comprises a nylon terpolymer; from about 1 to 20 percent by weight of a low residual formaldehyde cross-linkable resin, based upon the weight of the terpolymer; from about 0.1 to 10 percent by weight of a catalyst for the cross-linkable resin, based upon the weight therof and a suitable solvent for the terpolymer in an amount sufficient to form at least a 5 percent solution by weight of the terpolymer. Coated sewing threads comprise a sewing thread and from about 0.1 to 20 percent by weight of the cross-linked nylon composition, based upon the weight of the thread.

Claims

1. A cross-linkable nylon coating solution composition for sewing threads comprising:

a nylon terpolymer;

from about 1 to 20 percent by weight of a melamine formaldehyde resin, based upon the weight of said terpolymer;

said resin containing less than about 0.1 percent by weight of formaldehyde based upon the weight of said resin;

from about 0.1 to 10 percent by weight of a catalyst for said melamine formaldehyde resin, based upon the weight thereof; and

a suitable solvent for said terpolymer in an amount sufficient to form at least a 5 percent solution by weight of said terpolymer.

2. A cross-linkable nylon composition, as set forth in claim 1, wherein said nylon terpolymer comprises nylon 6, nylon 66 and nylon 610.

3. A cross-linkable nylon composition, as set forth in claim 1, wherein said nylon terpolymer comprises nylon 6, nylon 66 and nylon 69.

4. A cross-linkable nylon composition, as set forth in claim 1, wherein said terpolymer comprises nylon 6, nylon 66, and nylon 612.

5. A cross-linkable nylon composition, as set forth in claim 1, wherein said melamine formaldehyde resin is present in an amount of 10 percent by weight, based upon the weight of said terpolymer.

6. A cross-linkable nylon composition, as set forth in claim 1, wherein said catalyst is para-toluene sulfonic acid and is present in an amount of 10 percent by weight, based upon the weight of said melamine folmaldehyde resin.