Ambient hydrocurable coating and adhesives compositions
申请人:Rohm and Haas Company
公开号:US04299867A1
公开(公告)日:1981-11-10
The present invention is concerned with, as a hydrocurable composition, a mixture of an oxazolidine-functional polymer and a compound of a monomeric or polymeric character having a plurality of acryloxy groups. The first-mentioned polymer contains a plurality of pendant groups containing 2,2-dialkyl oxazolidine groups. The mixture of these two components can be stored under anhydrous conditions in a closed container without co-reaction so that a one-pot or one-package composition can be made up with many conventional ingredients of coating compositions other than aqueous components and stored without gelling until the time for application when the composition may be applied at ambient temperature and humidity whereupon reaction between the main two components mentioned above occurs in the film deposited and the film set up.
Hydrocurable ambient curing polyepoxide coating and adhesive
申请人:Rohm and Haas Company
公开号:US04308356A1
公开(公告)日:1981-12-29
Resin-forming polyepoxides are mixed with polyoxazolidinyl compounds or polymers containing pendant oxazolidinyl groups in which the carbon atom in the 2-position of the heterocyclic ring is substituted with saturated hydrocarbon groups, such as dialkyl, or with an alkylene group forming a saturated ring with the carbon atom in the 2-position of the oxazolidinyl ring to form, in the absence of water, a stable composition which can be stored in closed containers for months without undergoing gelation. When such compositions are spread into films and the films exposed to moisture at ambient temperature, e.g., to ambient air having a relative humidity of at least 20% and temperature of about 15.degree. to 25.degree. C., the polymer serves to react with and cure the polyepoxide.
The present invention is concerned with, as a hydrocurable composition, a mixture of an oxazolidine-functional polymer and a compound of a monomeric or polymeric character having a plurality of acryloxy groups. The first-mentioned polymer contains a plurality of pendant groups containing 2,2,-dialkyl oxazolidine groups. The mixture of these two components can be stored under anhydrous conditions in a closed container without co-reaction so that a one-pot or one-package composition can be made up with many conventional ingredients of coating compositions other than aqueous components and stored without gelling until the time for application when the composition may be applied at ambient temperature and humidity whereupon reaction between the main two components mentioned above occurs in the film deposited and the film set up.
Hydrocurable compositions containing epoxy and oxazolidine or oxazine groups, their use as or in coating and impregnating compositions and polymer containing such groups
申请人:ROHM AND HAAS COMPANY
公开号:EP0033515A1
公开(公告)日:1981-08-12
Hydrocurable compositions are provided containing a plurality of epoxy groups and oxazolidine or oxazine groups which are storage stable for at least one month under anhydrous conditions. This stability is achieved by selecting oxazolidines or oxazines in which the 2-position carbon atom in the ring is free of hydrogen atoms and substituted by alkyl groups or an alkylene group which forms a hydrocarbon ring with that carbon atom. Upon exposure to moisture the oxa-groups ring open for reaction with the epoxy groups. The groups may be in the same or different components and thus the composition may comprise polyepoxide and a compound or polymer containing a plurality of the oxa-groups or a polymer containing both classes of groups. The latter polymer is one embodiment of the invention. The compositions may be used for coating, impregnating and adhesive purposes.