 Flat nylon 66 yarn having a soft hand, and process for making same |
| We claim: 1. A bobbin having wound thereon a flat nylon 66 yarn having a substantially constant ... |
|
| Process for producing high knot strength polyamide monofilaments |
| OF THE INVENTION The process of the present invention basically comprises at least three steps ... |
|
| Bending plastic pipe |
| We, therefore, particularly point out and distinctly claim as our invention: 1. A method of field ... |
|
| N-methylene malonate of tetrahydroquinoline and derivatives thereof |
| OF THE INVENTION This invention relates to derivatives of 6,7-dihydro-1-oxo-1H,5H-benzo[ij]... |
|
| Process for fabricating foundry shapes |
| We claim: 1. A process for the fabrication of foundry shapes which comprises: a. mixing foundry ... |
|
| Modular type guided beam flat display device |
| Referring to FIG. 1, a flat display device including the scan deflection structure of the present ... |
|
| Segment display system |
| A segment display system which includes a cathode mechanism adapted to produce energy in the ... |
|
| Electroluminescent panels |
| The present invention is directed to the construction of electroluminescent panels and methods of ... |
|
|
Poly(alkyl vinyl ether)polyolefin copolymers
| Details |
Inventors: Patel, Niranjan; Riffle, Judy S.; McGrath, James E.;
Assignee: Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)
Primary Examiner: Seccuro; Carman J.
Assistant Examiner:
Attorney, Agent or Firm: Fennelly; Richard P., Morris; Louis A.
A blend of a polyolefin and a poly(alkyl vinyl ether) can be blended at elevated temperature to form a copolymer of the polyolefin and poly(alkyl vinyl ether). The resulting composition is useful as a compatibilizer, as a more water permeable substrate than the polyolefin, and as a photo-degradable material. |
|
DETAILED DESCRIPTION We claim: 1.
A reacted polymer blend of a polyolefin and a poly(alkyl vinyl ether) component which is a block or graft copolymer comprising poly(alkyl vinyl ether and polyoxazoline, said reacted blend being prepared by mixing the polymers at an elevated temperature.
2.
A reacted polymer blend as claimed in claim 1 wherein the poly(alkyl vinyl ether) component comprises a minor amount of the copolymer.
3.
A reacted polymer blend as claimed in claim 2 wherein the minor amount comprises up to about 49% by weight).
4.
A reacted polymer blend as claimed in claim 1 wherein the polyolefin is polypropylene.
5.
A reacted polymer blend as claimed in claim 1 wherein the poly(alkyl vinyl ether) is poly(methyl vinyl ether).
6.
A process of forming the reacted polymer blend of claim 1 which comprises heat blending the polyolefin and the poly(alkyl vinyl ether).
Description:
BACKGROUND OF THE INVENTION Blends of poly(alkyl vinyl ethers) with various polymers, e.
g.
, polystyrene, have been reported J.
Hu et al.
, for example, in Polymer Preprints 29(1), June 1988, pp.
321-322 reported that poly(methyl vinyl ether) was miscible with such polymers as polystyrene, poly(vinyl phenol), phenoxy polymers, and poly(ethylene-co-methacrylic acid) but was immiscible with amorphous polyurethane.
Apparently blends of poly(alkyl vinyl ethers) with polyolefins (e.
g.
, polypropylene, polyethylene) have not been reported nor has reactive processing of such blends been performed.
SUMMARY OF THE INVENTION The instant invention relates to novel poly(alkyl vinyl ether)/polyolefin copolymers and reactive processing of blends of a poly(alkyl vinyl ether) and polyolefin to form them.
DESCRIPTION OF THE DRAWING The Drawings form a portion of the instant application wherein: FIG.
1a and 1b are melting point depression plots of polypropylene and blends of polypropylene and poly(methyl vinyl ether); FIG.
2 is another melting point depression plot analogous to those of FIG.
1a and FIG.
1b and FIG.
3 is a plot of the isothermal crystallization rates for polypropylene and certain polypropylene/poly(ethyl vinyl ether) blends processed under differing conditions
|
| Related patents |
|
|
Sanitary rubber composition or article
OF THE INVENTION The inventor has made various efforts over a long time and consequently, has found that a sanitary rubber article which can favorably be compared with ...
|
|
|
Mannitol/sorbitol rolling compound blend
In accordance with the invention, there is provided a rolling compound blend which includes between about 80%-95% by weight mannitol and between about 5-20% by weight ...
|
|
|
Organophilic modified polymers
What is claimed is: 1. An organophilic polymer comprising an adduct of (1) a water soluble anionic or cationic synthetic polymer wherein said anionic synthetic polymer ...
|
|
|
Magnetic recording medium which includes a protective layer, an adhesion strengthening substance and a lubricant layer
The present inventors made in-depth investigation on the relationship between the friction and abrasion properties of magnetic recording medium and the lubricant used ...
|
|
|
Functional protein products
OF THE INVENTION Yeasts In accordance with my invention, yeasts are employed. Typically, yeasts can be grown on a suitable carbon energy source (substrate), under ...
|
|
|
Thermoplastic cap with internal oxygen impervious sheet and plastisol ring seal
I claim: 1. Leakproof screw stopper device for receptacles such as bottles and jars containing products which must be kept protected from oxygen, comprising a cup-shaped ...
|
|
|
Cap with an induction seal closure
OBJECTS OF THE INVENTION It is an object of the present invention to provide a cap with an improved induction seal closure for sealing the pouring opening of a container,...
|
|
|
Polyalkoxy monovinylaromatic compound in copolymerization of a conjugated diene with a monovinyl-substituted aromatic compound
OF THE INVENTION According to my invention, a polyalkoxy monovinyl-substituted aromatic hydrocarbon is employed as both comonomer and randomizer in the copolymerization ...
|
|
|
Flame retardants for polymers
We claim: 1. A flame-retardant composition comprising 1,11-diacetoxy-6-acetoxymethyl-2,2,6,10,10-penta(bromomethyl)-4,8-dioxaund ecane and a synthetic polymer plastic. 2....
|
|
|
Nonapeptides
OF THE INVENTION In accordance with this invention there is provided a novel group of nonapeptides of formula I: ##STR1## in which the A groups are hydrogen or a direct ...
|
|
|
Manufacturing Materials 
