Almond shell flour glue extenders

• US 4,778,530 A
• Filed: 11/09/1987
• Issued: 10/18/1988
• Est. Priority Date: 02/18/1986
• Status: Expired due to Fees

• Current Assignee: Agrashell Incorporated
• Original Assignee: Agrashell Incorporated
• Inventors: Ayers, Joseph W.
• Primary Examiner(s): Foelak, Morton
• Assistant Examiner(s): Nutter, Nathan M.
• Application Number:
  US07/120,183
• Time in Patent Office: 344 Days
• Field of Search: 106/154.1, 426/542, 426/625, 426/632, 426/482, 524/15, 524/47, 156/328, 156/331.3, 156/336, 428/529
• US Class Current: 106/164.01
• CPC Class Codes: C08L 2666/26 Natural polymers, natural resins or derivatives thereof according to C08L1/00 - C08L5/00, C08L89/00, C08L93/00, C08L97/00 or C08L99/00
• CPC Class Codes: C08L 61/04 Condensation polymers of aldehydes or ketones with phenols only
• CPC Class Codes: C09J 201/00 Adhesives based on unspecified macromolecular compounds
• CPC Class Codes: Y10T 428/3196 Phenoplast

Abstract

Finely divided almond shell flour is used as an extender in plywood- and laminating-adhesives, alone or in combination with other, different, vegetable shell flours.

Claims

1. A composition of matter adaptable to addition to a plywood- and laminating-adhesive as an extender therefor particularly to improve the viscosity and stability properties thereof, said composition comprising from 30 to 70 percent by weight of almond shell flour at its naturally occurring pH and having a particle size no coarser than 100 percent through a 150 mesh screen and no finer than 100 percent through a 325 mesh screen and from 70 to 30 percent by weight of a different nut shell flour selected from the group consisting of walnut shell flour, pecan shell flour, and filbert shell flour.

2. A plywood and laminating-adhesive composition comprising an aqueous emulsion of a phenol-aldehyde resin glue or an amine-aldehyde resin glue and, as an extender therefor, a composition as in claim 1.