 5-Aralkyl substituted 2h-benzotriazoles in stabilized compositions |
| What is claimed is: 1. A stabilized composition which comprises (a) an organic polymer substrate ... |
|
| Nucleated nylon/PTFE compositions |
| We claim: 1. Polycaproamide/polytetrafluoroethylene composition extrudable to form flexible tubing ... |
|
| Nylon 6 with improved wear life |
| I claim: 1. A molding composition comprising a melt blend of: a major weight amount of nylon 6, a ... |
|
| Isocyanate-crosslinked coating having reduced yellowing |
| We claim: 1. A coating composition for producing a clear or colorless coating, comprising: (a) a ... |
|
| Pipeline method for transporting viscous hydrocarbons |
| What is claimed is: 1. In the transportation of viscous hydrocarbons by pipeline, the improvement ... |
|
| Process for preparing organic dispersion of acid type fluorinated polymer |
| OF THE PREFERRED EMBODIMENTS The organic dispersion means a dispersion of the fluorinated polymer ... |
|
| Blends with poly(p-methylstyrene) |
| What is claimed is: 1. A blend of poly(p-methylstyrene) with between about 0.1 weight percent and ... |
|
| Thermoformable polymer blend composition |
| We claim: 1. A process for molding articles having a desired shape which comprises feeding a ... |
|
| Phenolic foam |
| What is claimed is: 1. A phenolic foam produced, without the use of a chlorofluorocarbon or ... |
|
| Dynamically cured thermoplastic olefin polymers |
| This invention relates to improved TPO compositions. In particular it relates to compositions of a ... |
|
|
Substantially amorphous olefin copolymers and compatible tackifying resins useful as hot-melt, pressure-sensitive adhesives
| Details |
Inventors: Trotter, Jimmy R.; Joyner, Frederick B.; McConnell, Richard L.;
Assignee: Eastman Kodak Company (Rochester, NY)
Primary Examiner: Seccuro; Carman J.
Assistant Examiner:
Attorney, Agent or Firm: Tootle; Clyde L., Reece, III; Daniel B.
This invention relates to blends of compatible tackifiers with substantially amorphous olefin copolymers containing at least one C.sub.3 to C.sub.5 linear .alpha.-olefin and 40 to 60 mole percent of at least one C.sub.6 to C.sub.10 linear .alpha.-olefin which are useful as hot-melt, pressure-sensitive adhesives. The unmodified copolymer base resins have melt viscosities in the range of >75,000 cp up to about 1,000,000 cp at 190.degree. C. The addition of the compatible tackifiers to the copolymer base resin causes a dramatic and unexpected increase in the shear adhesion failure time in addition to improved coatability as well as substantial increases in probe tack and peel adhesion values of the copolymers. |
|
DETAILED DESCRIPTION We claim: 1.
A substantially amorphous copolymer containing at least one C.
sub.
3 to C.
sub.
5 linear alpha-olefin and 40 to 60 mole percent of at least one higher alpha-olefin of 6 to 10 carbon atoms, said copolymer having a melt viscosity greater than 76,000 to 1,000,000 centipoise at 190.
degree.
C.
, a density of 0.
85-0.
86, and a glass transition temperature of -30.
degree.
to -45.
degree.
C.
, and said copolymers show little or no crystallinity by either X-ray or DSC techniques.
2.
A substantially amorphous copolymer according to claim 1 wherein said C.
sub.
3 to C.
sub.
5 linear alpha-olefin is propylene.
3.
A substantially amorphous copolymer according to claim 1 wherein said C.
sub.
3 to C.
sub.
5 linear alpha-olefin is butene-1.
4.
A substantially amorphous copolymer according to claim 1 wherein said C.
sub.
3 to C.
sub.
5 linear alpha-olefin is pentene-1.
5.
A substantially amorphous copolymer according to claim 2 wherein said higher alpha-olefin of 6 to 10 carbon atoms is hexene-1.
6.
A substantially amorphous copolymer according to claim 2 wherein said higher alpha-olefin of 6 to 10 carbon atoms is heptene-1.
7.
A substantially amorphous copolymer according to claim 2 wherein said higher alpha-olefin of 6 to 10 carbon atoms is octene-1.
8.
A substantially amorphous copolymer according to claim 2 wherein said higher alpha-olefin of 6 to 10 carbon atoms is nonene-1.
9.
A substantially amorphous copolymer according to claim 2 wherein said higher alpha-olefin of 6 to 10 carbon atoms is decene-1.
Description:
This invention relates to hot melt pressure sensitive adhesive compositions having a novel combination of properties.
More specifically, the invention relates to blends of compatible tackifiers with substantially amorphous olefin copolymers containing at least one C.
sub.
3 to C.
sub.
5 linear .
alpha.
-olefin and 40 to 60 mole percent of at least one C.
sub.
6 to C.
sub.
10 linear .
alpha.
-olefin which are useful as hot-melt, pressure-sensitive adhesives.
Pressure-sensitive adhesives that have good tack and adhere to numerous substrates are widely used by industry in various applications such as in consumer products
|
| Related patents |
|
|
Continuously forming and transporting consolidatable resin coated particulate materials in aqueous gels
What is claimed is: 1. A composition comprising: an aqueous liquid; a gelling agent comprising at least one member selected from galactomannon gums and derivatives ...
|
|
|
Blends of linear low density ethylene copolymers
I claim: 1. A polymer blend comprising a linear low density copolymer of ethylene with an olefin containing 4 to 10 carbon atoms and minor amounts of an at least ...
|
|
|
Impact copolymer compositions
What is claimed is: 1. A polypropylene impact copolymer composition consisting essentially of a homopolymer phase of propylene homopolymer and a copolymer phase of ...
|
|
|
Molding composition
OF THE INVENTION The molding composition of the present invention employs mixtures of several resins, two or more stabilizers, four or more plasticizers, three or more ...
|
|
|
Asbestos-free friction material
What we claim is: 1. An asbestos-free friction material comprising 5 to 25% by weight of a hardenable binder or binder mixture, a reinforcing fibrous material and ...
|
|
|
Process for the preparation of a stable, readily soluble granulate with a content of bleach activators
OF THE INVENTION Applicants have developed a process for preparing bleach activator granulates which satifies the criteria set forth above. According to the process, a ...
|
|
|
Composition comprising a metal salt and metal powder therefrom by the calcining thereof
OF THE INVENTION Disclosed herein is a composition that is non-fluid substance of an essentially solid, or semi-solid, phase. The composition comprises as first ...
|
|
|
Process for the production of modified polyolefin
OF THE INVENTION A feature of the present invention is that the organosilane compound added to modified polyolefin reacts with the unreacted unsaturated carboxylic ...
|
|
|
Reinforced cement sheet product containing fibers other than asbestos, clay and thickener
What is claimed is: 1. A fiber-cement product comprising by weight Portland cement in an amount of between about 40% and 80%, fibers other than asbestos in an amount of ...
|
|
|
Reinforcing element and method of making the same
1. A reinforcing element comprising a bundle of from about 15 to about 100 strands of reinforcing material, said strands being between about 1/3 inch and 2 inches in ...
|
|
|
Adhesives and Rubbers 
