The present invention provides a thermoformable melamine foam and a method for preparing the same, wherein the thermoformable melamine foam comprises a condensate of a melamine-formaldehyde-based compound with a low molecular ratio to be low in formaldehyde content and shows excellent thermostability and various physical properties.

Crosslinked polymers made up of polymerized units of phenothiazine, pyrrole, and aldehyde. The crosslinked polymers are porous with a BET surface area in the range of 300-600 m.sup.2/g. A method of synthesizing the crosslinked polymers is described. Processes for using the crosslinked polymers as adsorbent materials for adsorbing gases (e.g. CO.sub.2 capturing), and separating fluid mixtures under dry and wet conditions are also introduced.

The present invention relates to reaction products H of at least one cyclic urea U, at least one multifunctional aldehyde A and at least one polyol P, process for preparing thereof and compositions comprising thereof.

The present invention relates to reaction products H of at least one cyclic urea U, at least one multifunctional aldehyde A and at least one polyol P, process for preparing thereof and compositions comprising thereof.

Polyester films with abrasion resistant coatings and methods for making the same are provided. The coated polyester films include a polyester film substrate having a coating on at least one side thereof, wherein the coating is derived from a coating composition that includes (i) a melamine crosslinker component and (ii) a polyurethane component derivable from at least one diisocyanate and at least one polymeric polyol.

Polyester films with abrasion resistant coatings and methods for making the same are provided. The coated polyester films include a polyester film substrate having a coating on at least one side thereof, wherein the coating is derived from a coating composition that includes (i) a melamine crosslinker component and (ii) a polyurethane component derivable from at least one diisocyanate and at least one polymeric polyol.

A polymer to which there is attached a group represented by the following formula (1):

##STR00001##

(wherein each of R.sub.x, S.sub.y, and S.sub.z represents a hydrogen atom or a monovalent organic group; each of R.sub.y and R.sub.z represents a single bond or a divalent organic group; each of ring Ar.sub.y and ring Ar.sub.z represents a C4 to C20 cyclic alkyl group or a C6 to C30 aryl group, and ring Ar.sub.y and ring Ar.sub.z may be linked together to form a new ring structure therebetween; n.sub.y is an integer of 0 to the maximum number corresponding to allowable substitution to ring Ar.sub.y; n.sub.z is an integer of 0 to the maximum number corresponding to allowable substitution to ring Ar.sub.z; and * is a polymer bonding site).

A polymer to which there is attached a group represented by the following formula (1):

##STR00001##

(wherein each of R.sub.x, S.sub.y, and S.sub.z represents a hydrogen atom or a monovalent organic group; each of R.sub.y and R.sub.z represents a single bond or a divalent organic group; each of ring Ar.sub.y and ring Ar.sub.z represents a C4 to C20 cyclic alkyl group or a C6 to C30 aryl group, and ring Ar.sub.y and ring Ar.sub.z may be linked together to form a new ring structure therebetween; n.sub.y is an integer of 0 to the maximum number corresponding to allowable substitution to ring Ar.sub.y; n.sub.z is an integer of 0 to the maximum number corresponding to allowable substitution to ring Ar.sub.z; and * is a polymer bonding site).

An amine-functionalized, crosslinked porous copolymer can be synthesized by linking 1,4-benzenediamine and pyrrole with p-formaldehyde in the presence of concentrated hydrochloric acid catalyst. The polymer is permanently microporous, with a BET surface area of 250 to 350 m.sup.2/g. Due to the high concentration of polar amines within its backbone, the polymer exhibits a CO.sub.2 uptake of 17.5 to 30 cm3/g at 298 K and 1 bar, but demonstrated a remarkably high selectivity for CO.sub.2 over N.sub.2 at 298 K. Dynamic breakthrough experiments indicate that this material is an effective adsorbent for selectively separating CO.sub.2 from a dry and wet gas mixture containing N.sub.2 for over 45 cycles without significant loss of performance. Furthermore, the polymer can be regenerated at room temperature after each cycle by a simple N.sub.2 flow.

An amine-functionalized, crosslinked porous copolymer can be synthesized by linking 1,4-benzenediamine and pyrrole with p-formaldehyde in the presence of concentrated hydrochloric acid catalyst. The polymer is permanently microporous, with a BET surface area of 250 to 350 m.sup.2/g. Due to the high concentration of polar amines within its backbone, the polymer exhibits a CO.sub.2 uptake of 17.5 to 30 cm3/g at 298 K and 1 bar, but demonstrated a remarkably high selectivity for CO.sub.2 over N.sub.2 at 298 K. Dynamic breakthrough experiments indicate that this material is an effective adsorbent for selectively separating CO.sub.2 from a dry and wet gas mixture containing N.sub.2 for over 45 cycles without significant loss of performance. Furthermore, the polymer can be regenerated at room temperature after each cycle by a simple N.sub.2 flow.