Maro Publications


Patent Abstracts

from 6/19/2012   

Maro Topics

Acrylic Adhesives


Adhesives: Acrylics

Adhesives: Applications

Adhesives: Methods

Adhesive Tape



Cyanoacrylate Adhesives

Hot Melt Adhesives


Polyurethane (PUR) Adhesives

Pressure Sensitive Adhesives

Pressure Sensitive Adhesives


Patent Abstracts

6. 8,394,874 
Method and aqueous adhesive composition for the production of panels made from vegetable matter 

Graux and Mentink of Roquette Freres, France, developed an adhesive  including  vegetable starch the amylose content of which is between 30 and 60%.  This adhesive is used forming lignocelluloses panel by hot pressing.  The emissions of formaldehyde vapor are minimized as low as possible during processing and later use.  .

5. 8,288,479 
Propylene-based polymer, propylene-based polymer composition, pellet and pressure-sensitive adhesive
Akai et al of Mitsui Chemicals, Inc., Japan, developed propylene-based materials for pressure-sensitive adhesives to various adherends, which show a desired initial adhesion and will not contaminate the adherends and which have excellent pellet handling properties. The propylene-based polymer (A) includes 65 to 80 mol % of a structural unit derived from propylene, 5 to 10 mol % of a structural unit derived from ethylene and 15 to 25 mol % of a structural unit derived from a C4-20 .alpha.-olefin (wherein these percentages are calculated based on 100 mol % of the total of the structural unit derived from propylene, the structural unit derived from ethylene and the structural unit derived from a C4-20 .alpha.-olefin) and has a heat of crystal fusion of 5 to 45 (J/g) as measured by DSC. (RDC 11/1/2012)

4. 8,242,036 
Adhesive resin composition and laminate
Ikeda of Mitsubishi Chemical Corporation, Japan, developed a packaging adhesive consisting of 10-99.5 wt% (A), 0.5-30 wt%  unsaturated-carboxylic-acid-modified polypropylene and 0-89.5 wt% another olefin resin.  A consists of  10-60 wt% propylene homopolymer and 40-90 wt% propylene/ethylene copolymer.. (RDC 8/29/2012)

3. 8,211,977 
Polymeric compositions with adhesive properties
Wautier and Gauthy of Solvay, Belgium, developed an adhesive consisting of (1) at least one fluoropolymer (A) grafted by at least one compound (a), wherein the compound (a) contains at least one functional group (f1) capable of conferring adhesion properties on the fluoropolymer; (2) at least one olefin polymer (B) grafted by at least one compound (b), wherein the compound (b) contains at least one functional group (f2) capable of conferring adhesion properties on the olefin polymer and of reacting with the functional group (f1) contained in the compound (a); and (3) at least one polymer (C) chosen from polyesters and polyamides. (RDC 7/10/2012)

2. 8,211,530 
Adhesive fillets and method and apparatus for making same
Mead and Potter of Northrop Grumman Systems Corporation, formed shaped adhesive fillets by stacking multiple layers of adhesive sheets, consolidating the stacked layers, cutting strips from the consolidated layers and forming the strips into adhesive fillets having the desired cross sectional shapes.  The fillets may be formed by feeding the strips through an apparatus comprising opposing rollers and a catcher, which facilitates release of the adhesive fillets from the rollers. The formed adhesive fillets are useful for applications such as stiffened panels for aircraft. (RDC 7/9/2012)

1. 8,193,289 
Polyolefin adhesive compositions and articles made therefrom
Abhari et al of ExxonMobil, Texas, developed a hot melt adhesive for bonding paper cardboard  packaging consisting of 1) a functionalized component, 2) tackifier, and 3) an olefin polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 5 mole % of ethylene having a Dot T-Peel of 1 Newton or more, a branching index (g') of 0.95 or less measured at the Mz of the polymer; and an Mw of 100,000 or less; where the functional component is selected from the group consisting of functionalized polymers, functionalized oligomers and beta nucleating agents; and where the Gardner color of the adhesive does not change by more than 7 Gardner units when the adhesive has been heat aged at C. for 48 hours as compared to the Gardner color of the unaged composition. (RDC 6/27/2012)


Bookmark this page to follow future developments!.
(RDC 6/5/2012)


Roger D. Corneliussen

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921


Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen

** Date of latest addition; date of first entry is 6/19/2012.