摘要:
A curable coating composition is described comprising (A) a carbamate- or urea-functional compound that is the reaction product of a mixture comprising (1) a compound comprising a carbamate or urea group or a group that can be converted to carbamate or urea, and a hydroxyl functional group (2) a compound comprising inorganic functional groups that are reactive with hydroxyl groups on a plurality of molecules of compound (A)(1), but that are not reactive with the carbamate or urea groups on compound (A)(1), (B) a compound comprising a plurality of groups that are reactive with carbamate or urea.
摘要:
The invention consists of a plurality of hinged panels including side rails where the panels on each end are shorter in length than the panels between them. The panel on one end is shorter in length than the panel on the other end. Both end panels are tapered in thickness and in with. The top surface is covered with projects forming rectangular cavities with the top of the long sides higher at the ends than in the mid-section. The bottom surface includes fasteners for removably attaching cleats for gripping slippery surfaces. A variety of cleats are proposed for securing the mat under different conditions. Bracing arms are provided to support the mat in an upright position when it is used as a highway warning marker. The mat is brightly colored for daytime use and the side rails and bracing arms are covered with light reflective material for use during the hours of darkness. The panels are so hinged that one half will fold over the remaining half without interference for storage.
摘要:
Plasticizing resins, aqueous dispersions of cationic resins, and methods of making the same for use in cathodic electrodeposition are disclosed. The resins are formed from reacting a polyoxyalkylenepolyamine, a phenol, and a formaldehyde. The reactants may further include a block building unit derived from a polyepoxide. When used in combination with other conventional electrodepositable resins, deposited films with improved mechanical properties and descreased tendency toward cratering are obtained.
摘要:
Environmental etch resistant coatings are described. The coatings are derived from aqueous, curable coating compositions comprising:(a) a carbamate-functional grafted acrylic polymer that comprises the reaction product of a first acrylic polymer and a second acrylic polymer, with at least one of the first and second acrylic polymers having groups that impart water dispersibility to the grafted acrylic polymer, and at least one of the first and second acrylic polymers having carbamate functionality; and(b) a second component comprising a compound having a plurality of functional groups that are reactive with the carbamate functionality.
摘要:
A curable coating composition is described comprising (A) a compound comprising a plurality of functional crosslinking groups, at least one of which is a carbamate or urea functional group, which compound also includes at least one carbonate group having the structure: ##STR1## and (B) a curing agent comprising a plurality of groups that are reactive with the functional groups on compound (A).
摘要:
The present invention is directed to benzoxazine-containing adhesives having high adhesive strength at high temperature. These materials are especially useful in automotive applications, in particular, as adhesives for brake components. Methods of their use are also described.
摘要:
A free paint film is formed and applied to a substrate with heat, pressure, or both. The free paint film includes an outer layer formed from a composition that includes an olefinic material. The olefinic material is an olefin-based block copolymer with an olefin block that is at least substantially saturated and at least one (poly)ester or (poly)ether block, an at least substantially saturated polyolefin polyol having a number average molecular weight of from about 500 to about 20,000 or a derivative thereof, or a combination of both.
摘要:
Environmental etch resistant coatings are described. The coatings are derived from aqueous, curable coating compositions comprising: (a) a carbamate-functional grafted acrylic polymer that comprises the reaction product of a first acrylic polymer and a second acrylic polymer, with at least one of the first and second acrylic polymers having groups that impart water dispersibility to the grafted acrylic polymer, and at least one of the first and second acrylic polymers having carbamate functionality; and (b) a second component comprising a compound having a plurality of functional groups that are reactive with the carbamate functionality.
摘要:
The present invention provides an olefin-based block copolymer that has an olefin block that is substantially saturated and at least one (poly)ester or (poly)ether block. The olefin-based block copolymer of the invention can be prepared by reacting a liquid hydroxyl-functional, saturated or substantially saturated olefin polymer with a chain-extension reagent that is reactive with hydroxyl groups and will polymerize in a head-to-tail arrangement of monomer units. The olefin-based block copolymer of the invention can be used to prepare an adhesion promoter that provides excellent adhesion of subsequent coating layers to olefinic substrates like TPO and superior properties as compared to previously used adhesion promoters containing chlorinated polyolefins. Alternatively, the olefin-based copolymers of the invention can be used as an additive in a curable coating composition to provide excellent adhesion to olefinic substrates like TPO, even when used in very minor amounts compared to the amounts required for previously known agents.
摘要:
This invention is directed to a highly stable composition and application process for cathodic electrodeposition of a coating which is thermally curable at very low baking temperatures. The invention provides both long-term stability of the bath composition prior to application and highly crosslinked corrosion resistant films when cured at baking temperatures as low as 93° C.