Method of making aromatic dihydroxy diacid dihalides and...

Details Method of making aromatic dihydroxy diacid dihalides and... Method of making aromatic dihydroxy diacid dihalides and...

2007-08-07

2007-08-07

Boykin, Terressa (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C428S411100, C428S412000, C524S459000, C524S461000, C528S198000

Reexamination Certificate

active

11180241

ABSTRACT:
A method of making an aromatic dihydroxy diacid dihalide comprises forming a solution of an aromatic dihydroxy diacid in a solvent, contacting the aromatic dihydroxy diacid solution with a halogenating agent; heating the solution under an inert atmosphere to convert from 50 and 100 percent of the aromatic dihydroxy diacid to aromatic dihydroxy diacid dihalide, wherein the time required for the conversion is less than 4 hours, and removing at least a portion of the solvent.

REFERENCES:
patent: 3515695 (1970-06-01), Loughran et al.
patent: 1 399 085 (1975-06-01), None
patent: 61012730 (1986-01-01), None
Iso et al., “Efficient Synthesis of Resin-Bould a-TMSdiazoketones and Their Use in Solid-Phase Organic Synthesis”, Tetrahedron 56 (2000) pp. 5353-5361.

Affiliated with

Also associated with

Rating

Method of making aromatic dihydroxy diacid dihalides and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making aromatic dihydroxy diacid dihalides and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making aromatic dihydroxy diacid dihalides and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3898500