David A. Cadalbert - Woodbury MN Eric D. Morrison - West St. Paul MN Tamara L. Johnson - Oakdale MN William L. Kausch - Cottage Grove MN David R. Boston - Woodbury MN Wayne K. Larson - Maplewood MN Steven T. Hedrick - Cottage Grove MN
Assignee:
Minnesota Mining and Manufacturing Company - St. Paul MN
International Classification:
B32B 3300 C09D 524
US Classification:
428 401
Abstract:
An antistatic adhesive article which comprises an adhesive layer and utilizes vanadium oxide to impart antistatic properties to the article. The article is preferably an adhesive tape or sheet. The adhesive may be pressure sensitive or non-pressure sensitive. The vanadium oxide may be incorporated into or onto the tape from an aqueous dispersion.
Minnesota Mining and Manufacturing Company - St. Paul MN
International Classification:
C08G 1832
US Classification:
528 68
Abstract:
An isocyanate-terminated sulfocompound is the reaction product of a polyisocyanate and a sulfopolyol or sulfopolyamine which is the reaction product of one mole of a sulfodicarboxylic acid and about two moles of an aliphatic polyol or polyamine having two or more hydroxyl or amino groups attached to a linear chain and having a molecular weight of up to 2000. The sulfocompound can be reacted with ethylenically-unsaturated alcohols, water, polyamines, or polyols, to give ethylenically-unsaturated sulfocompounds, sulfopolyureas or sulfopolyurethanes.
Aqueous Sulfopolyurea Colloidal Dispersions, Films And Abrasive Articles
Steven T. Hedrick - Cottage Grove MN Howard S. Creel - Oakdale MN Subramanian Krishnan - St. Paul MN John J. Stofko - St. Paul MN Wayne K. Larson - Maplewood MN
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
B24D 328 B01J 1300 C08J 514
US Classification:
51295
Abstract:
The present invention relates to stable aqueous colloidal dipersions of sulfopolyureas and self supporting films formed from the dispersions which display good mechanical properties from about room temperature to temperatures exceeding 150. degree. C. The films of the invention, which are formed with no volatile organic compound (VOC) emissions and no post-coating chemical or ionic cross-linking, are not redispersible in water and may be used to form heat resistant abrasive articles.
Minnesota Mining and Manufacturing Company - St. Paul MN
International Classification:
C08G 6368
US Classification:
260 75S
Abstract:
Water-dispellable, optionally pressure-sensitive hot melt resins having superior heat-aging properties are made by reacting (1) diols, of which at least 90% are polycaprolactonediol and/or monoalkylene diols, with (2) dicarboxylic acids, of which up to 95% are aliphatic, 5-25% are aromatic and have a magnesium or alkali metal sulfonate group attached to the ring, and the balance are non-sulfonated aromatic. These resins, which find use as hot melt adhesives for book binding and other purposes, can be readily dissolved or dispersed in a paper beater during a repulping operation. The product can be wound upon itself and supplied in roll form, optionally reinforced by a fibrous membrane.
Wayne K. Larson - Maplewood MN Steven T. Hedrick - Maplewood MN
Assignee:
Minnesota Mining and Manufacturing Company - St. Paul MN
International Classification:
C08G 1814
US Classification:
521157
Abstract:
A water-absorbing sponge comprises at least one of a sulfo- group containing polyurea and polyurethane, the polymer containing at least one sulfonate equivalent per 20,000 molecular weight units.
Minnesota Mining and Manufacturing Company - St. Paul MN
International Classification:
C08G 1832
US Classification:
528 60
Abstract:
An isocyanate-terminated sulfocompound is the reaction product of a polyisocyanate and a sulfopolyol or sulfopolyamine which is the reaction product of one mole of a sulfodicarboxylic acid and about two moles of an aliphatic polyol or polyamine having two or more hydroxyl or amino groups attached to a linear chain and having a molecular weight of up to 2000. The sulfocompound can be reacted with ethylenically-unsaturated alcohols, water, polyamines, or polyols, to give ethylenically-unsaturated sulfocompounds, sulfopolyureas or sulfopolyurethanes.
Method For Reducing Water Uptake In Silyl Terminated Sulfopoly(Ester-Urethanes)
Larry R. Krepski - White Bear Lake MN Steven M. Heilmann - Afton MN Daniel E. Mickus - Mahtomedi MN Wayne K. Larson - Maplewood MN
Assignee:
Minnesota Mining and Manufacturing Company - St. Paul MN
International Classification:
C08J 300 C08K 320 C08L 7500 C08L 8300
US Classification:
524590
Abstract:
A method of decreasing the water uptake in a sulfopoly(ester-urethane) by preparing said sulfopoly(ester-urethane) from a chain extended sulfopolyester polyol which itself has been prepared in a two-step method, said sulfopoly(ester-urethane) comprising in its backbone at least one non-terminal arylene or alkylene group comprising a pendant sulfonic acid group or salt thereof, said sulfonic acid group or salt thereof having the formula ##STR1## wherein R is a trivalent aliphatic or aromatic group and M is a cation, said sulfonic acid group or salt thereof being bonded directly through said aliphatic or aromatic group to ester groups, the polymer of said sulfo(polyester-urethane) being terminated by at least one hydrolyzable silyl group, said two-step method for preparing said chain extended sulfopolyester polyol comprising the steps of: a) reacting a sulfopolycarboxylic acid or ester with a polyol to produce a sulfopolyester polyol, b) chain extending said sulfopolyester polyol by an esterification reaction with a lower aliphatic lactone to produce a chain extended sulfopolyester polyol, and said chain extended sulfopolyester polyol then, (1) in one embodiment, being reacted with a stoichiometric excess of a polyisocyanate and at least one of a polyol, polyamine, and polythiol to produce an isocyanate-terminated sulfo(polyester-urethane), which is then reacted with a nucleophilic, hydrolyzable silane or (2) in a second embodiment, being reacted with a polyisocyanate and a stoichiometric excess of at least one of a polyol, polyamine, and polythiol to produce a hydroxyl-, amino-, or mercapto-terminated sulfo(polyester-urethane) which is then reacted with an electrophilic hydrolyzable silane to produce said sulfopoly(ester-urethane), which when dried has decreased water uptake.
Aqueous Solvent Dispersible Linear Polyurethane Resins
Minnesota Mining and Manufacturing Company - Saint Paul MN
International Classification:
C08G 1832 C08G 1838 C08G 1846
US Classification:
528 71
Abstract:
An organic polyurethane resin capable of water and aqueous organic solvent redispersibility comprising the reaction product of at least one hydrophilic diol, at least one hydrophobic diol, at least one organic diisocyanate and, optionally, at least one chain extender.