Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1994-02-09
1995-12-05
Lesmes, George F.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524 44, 524 45, 524 55, 524 57, 524916, C08F 216, C08K 320, C08L 904
Patent
active
054730058
ABSTRACT:
A water based thixotropic adhesive gel is disclosed which contains: water; polyvinyl alcohol, or wherein a portion of the polyvinyl alcohol is replaced with polyvinylpyrrolidone; xanthan gum to impart thixotropic properties to the gel; and a plasticizer for the polyvinyl alcohol. The gel has a thixotropic index which permits the viscosity of the adhesive to break down when a flexible tube or squeeze bottle dispenser is finger-pressed while having a sufficiently low viscosity to allow for easy extrusion from an orifice having a diameter of about 0.06 to 0.15 inches. When pressure is released, after the desired amount of adhesive has flown out of the dispenser, the adhesive quickly reverts to very close to its original gel state so that it does not run on a vertical surface of porous or semiporous material such as paper. Preferred gels contain a water soluble dye and are clear.
REFERENCES:
patent: 2510257 (1950-06-01), Robinson
patent: 3256221 (1966-06-01), Cooper
patent: 3442845 (1969-05-01), Columbus et al.
patent: 3676174 (1972-07-01), Specter
patent: 3896073 (1975-07-01), Smith
patent: 4251400 (1981-02-01), Columbus
patent: 4282120 (1981-08-01), Cisterni
patent: 4638022 (1987-01-01), Cope
patent: 4722954 (1988-02-01), Hallsworth
patent: 4767839 (1990-11-01), Carpenter et al.
patent: 5190997 (1993-03-01), Lindemann et al.
patent: 5284897 (1994-02-01), Columbus et al.
patent: 5306749 (1994-04-01), Columbus et al.
patent: 5322880 (1994-06-01), Columbus et al.
Handbook of Water Soluble Gums and Resins by R. L. Davidson, 180, McGraw-Hill, pp. 20-20, 20-18, 20-19, 21-15, 21-16.
Handbook of Adhesives, Third Ed., I. Skiest, pp. 388-390, 394-395, and 398.
Kelzan, Xanthan Gum, (Tech. Bulletin D13-15) of Merck & Co.
Kelco, Xanthan Gum, 3rd Ed., of Kelco a Division of Merck & Co.
Anderson John
Columbus Peter S.
Patel Yogeshbhai B.
Borden Inc.
Copenheaver Blaine R.
Lesmes George F.
LandOfFree
Thixotropic adhesive gel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thixotropic adhesive gel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thixotropic adhesive gel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1374636