Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Reexamination Certificate
2005-06-07
2005-06-07
Seidleck, James J. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
C522S003000, C522S031000, C522S150000, C522S157000, C522S158000, C522S159000, C522S161000, C522S168000, C522S170000, C522S184000, C522S185000, C522S186000, C428S3550RA, C428S356000, C428S3550EP, C428S3550BL, C428S3550EN, C525S098000, C525S313000, C525S314000
Reexamination Certificate
active
06903144
ABSTRACT:
This invention is a process for making UV curable adhesives, sealants, coatings, ink, flexible printing plates, laminating adhesives, fibers, gaskets, and related compositions, films, and thin parts, wherein an epoxidized monohydroxylated polydiene polymer comprised of at least two different diene monomers wherein at least one is a diene monomer which yields unsaturation suitable for epoxidation is used as the binder for the composition. The preferred epoxidized monohydroxylated polymers are block copolymers of isoprene and butadiene wherein a hydroxyl group is attached at one end of the polymer molecule. These polymers may be hydrogenated or unhydrogenated. The process involves mixing the above polymer or the polymer with one or more other formulating ingredients together with and insoluble photoinitiator which is preferably selected from the group consisting of triaryl sulfonium salts. The mixture is then subjected to mixing conditions in a high speed mixer, preferably a high speed disk disperser, at a blade tip speed of from 200 to 2000 cm/sec at a temperature from 25 to 130° C., preferably from 40 to 100° C. This process is highly suited for making stable cationic photoinitiator concentrations that can be added to adhesive, coating, or sealant formulations to effect rapid UV cure.
REFERENCES:
patent: 5229464 (1993-07-01), Erickson et al.
patent: 5393818 (1995-02-01), Masse et al.
patent: 5691414 (1997-11-01), Kiibler et al.
patent: 5776998 (1998-07-01), Southwick et al.
patent: 5837749 (1998-11-01), Erickson et al.
patent: 5840809 (1998-11-01), Ohtsuka et al.
patent: H001786 (1999-02-01), Masse et al.
patent: 6541553 (2003-04-01), Erickson et al.
patent: 6649259 (2003-11-01), Hu et al.
patent: 6803081 (2004-10-01), Paul
patent: 1434085 (1976-04-01), None
Erickson James R.
Zimmermann Esther M.
Kraton Polymers U.S. LLC
McClendon Sanza L.
Seidleck James J.
LandOfFree
Non-aqueous solvent-free process for making UV curable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-aqueous solvent-free process for making UV curable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-aqueous solvent-free process for making UV curable... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3459224