Thermoplastic poly acrylated glycerol adhesives useful in cellulosic products

US11214714B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11214714-B2
Application numberUS-201916405697-A
CountryUS
Kind codeB2
Filing dateMay 7, 2019
Priority dateMay 8, 2018
Publication dateJan 4, 2022
Grant dateJan 4, 2022

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The present invention relates to an adhesive comprising a thermoplastic polyacrylated glycerol polymer, water, and a cross linker that is reactive with the polyacrylated glycerol polymer. This adhesive is useful in the formation of cellulosic products including oriented strand board (OSB), particle board, oriented structural straw board, chipboard, plywood, laminated veneer lumber (LVL), pressed wood, glued laminated timber (glulam), cross-laminated timber (CLT), and other wood products. Methods of producing the adhesive and cellulosic products are also disclosed.

First claim

Opening claim text (preview).

What is claimed: 1. A composition comprising: a thermoplastic polyacrylated glycerol polymer prepared by first reacting acrylic reagent with glycerol to form acrylated glycerol monomers and then polymerizing the acrylated glycerol monomers, wherein the thermoplastic polyacrylated glycerol polymer is predominantly non-crosslinked; water; cellulosic particles or pieces; and a cross linker reactive with the polyacrylated glycerol polymer and mixed with the polyacrylated glycerol, the cellulosic particles or pieces, and the water. 2. The composition of claim 1 further comprising: an additive selected from the group consisting of inhibitors, initiators, and copolymers. 3. The composition of claim 1 , wherein the cross linker is selected from the group consisting of diisocyanates, anhydrides, multiply (meth)acrylated cross linkers, polyacids, and acid halides. 4. The composition of claim 3 , wherein the cross linker is polymeric methylene diphenyl diisocyanate. 5. The composition of claim 1 , wherein the thermoplastic polyacrylated glycerol polymer has a molecular weight ranging from 10 kDa to 10 MDa. 6. The composition of claim 1 , wherein the thermoplastic polyacrylated glycerol polymer has a molecular weight ranging from 500 kDa to 2 MDa. 7. The composition of claim 1 , wherein the thermoplastic polyacrylated glycerol polymer has a glass transition temperature (T g ) below 0° C. 8. The composition of claim 1 , wherein the cellulosic particles or pieces are wood particles or pieces.

Assignees

Inventors

Classifications

  • Polyurethanes · CPC title

  • C09J133/14Primary

    of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen · CPC title

  • from particles · CPC title

  • from fibres · CPC title

  • Lignocellulosic material, e.g. wood, straw or bagasse {(manufacture of articles made from lignocellulosic material by dry processes B27N)} · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US11214714B2 cover?
The present invention relates to an adhesive comprising a thermoplastic polyacrylated glycerol polymer, water, and a cross linker that is reactive with the polyacrylated glycerol polymer. This adhesive is useful in the formation of cellulosic products including oriented strand board (OSB), particle board, oriented structural straw board, chipboard, plywood, laminated veneer lumber (LVL), presse…
Who is the assignee on this patent?
Univ Iowa State Res Found Inc, Midwest Acrylated Processes Llc
What technology area does this patent fall under?
Primary CPC classification C09J133/14. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jan 04 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).