The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 1992
Filed:
Dec. 13, 1989
Hiromi Ishida, Moka, JP;
Masataka Morioka, Moka, JP;
GE Plastics Japan, Ltd., Tokyo, JP;
Abstract
Thermoplastic molding compositions of blends of polyphenylene ethers and polyesters are improved in respect to impact resistance by the addition of an organophosphorus compound of the formula: ##STR1## wherein R.sub.1 when taken independently is selected from divalent hydrocarbon residues containing 2-12 carbon atoms; each of R.sub.2 -R.sub.5 when taken independently are selected from the group consisting of alkyl groups of 2 to 12 carbon atoms, aryl groups containing 6-14 carbon atoms, alkyl-substituted aryl groups, aralkyl groups, halogen-substituted alkyl groups, halogen-substituted aryl groups of 6-14 carbon atoms, halogen-substituted alkyl-substituted aryl groups, and halogen-substituted aralkyl groups; two groups selected from among R.sub.1 -R.sub.5 may be bonded together and form a ring; provided at least one member selected from among R.sub.1 -R.sub.5 has a carbon-carbon unsaturated double bond or triple bond, and at least one member selected from among R.sub.1 -R.sub.5 is an oxazoline residue; and n is an integer of 0-5. It is believed that the organophosphorus compound under the influence of heat during thermal processing functions to couple the polyphenylene ether to the polyester, therby improving impact resistance of molded articles.