A thermosetting resin composition containing: (A) an addition reaction product of a maleimide compound having at least two N-substituted maleimide groups in one molecule (a1) and an amine compound having at least two primary amino groups in one molecule (a2), (B) a thermoplastic elastomer, and (C) a copolymer resin having a structural unit derived from an aromatic vinyl compound and a structural unit derived from a carboxylic acid anhydride.

Polymers bearing the following structural elements per molecule: (A) an average of at least two alkoxylated (poly)alkylenimine units, said alkylene being selected from C.sub.2-C.sub.10-alkylene and said alkoxylation being selected from ethoxylation, propoxylation, butoxylation and combinations of at least two of the foregoing, (B) at least one polysiloxane unit, and (C) at least one linkage connecting at least two different alkoxylated (poly)alkylenimine units (A) bearing at least one polysiloxane unit (B), each link-age (C) being selected from organic spacers bearing in the range of from 4 to 30 carbon atoms.

Compositions include a compound preparable by reaction of components comprising an optionally crosslinked polyethylenimine and at least one an amine-reactive hydrolyzable organosilane represented by the formula RZSiY.sub.3. R represents an amine-reactive group containing 1 to 18 carbon atoms; Z represents a divalent organic group containing 1 to 8 carbon atoms; and each Y independently represents a hydrolyzable group. Methods of using the compositions to make articles, and articles produces thereby are also disclosed. A composition comprising an intimate mixture of a crosslinked polyethylenimine and a polymeric binder material, and a method of making it is also disclosed.

The present invention relates to a process for the treatment of water from the production well of chemical enhanced oil recovery (CEOR) extraction. In particular, the process relates to the treatment of produced water with a combination of reagents to clarify the water, the reagents being selected from (i) a dithiocarbamate polymer which is water-soluble and has a molecular weight of 00 or more and (ii) a metal ion selected from the group comprising a cation of a transition metal, aluminium and lead, and an apparatus therefor. The use of such reagents in the clarification of produced water from polymer flood from chemical enhanced oil recovery is also disclosed.

A compound containing at least one species of formula (I):

##STR00001## where: A.sup.x is an anion of valency x equal to 1 or 2 chosen from sulfonate, sulfonylimide of SO.sub.2N.sup.SO.sub.2C.sub.yF.sub.2y+1 type with y being an integer between 0 and 4; borate, borane, phosphate, phosphinate, phosphonate, silicate, carbonate, sulfide, selenate, nitrate and perchlorate anions; C.sup.x+ is a counter-cation of the anion A.sup.x, chosen from a proton H.sup.+ and alkali metal and alkaline-earth metal cations; p is an integer ranging from 1 to 10; E is an organic spacer comprising a linear sequence of at least two covalent bonds; n is an integer greater than or equal to 2; and G represents: (a) a group

##STR00002## or (b) a group

##STR00003## the anion A.sup.x being covalently bonded to the polycyclic group Ar.

A silicone-modified polybenzoxazole resin comprising repeating units of formulae (1a) and (1b) is prepared by addition polymerization. R.sup.1 to R.sup.4 are a C.sub.1-C.sub.8 monovalent hydrocarbon group, m and n are integers of 0-300, R.sup.5 is C.sub.1-C.sub.8 alkylene or phenylene, a and b are positive numbers of less than 1, a+b=1, and X.sup.1 is a divalent linker of formula (2). The resin is flexible, soluble in organic solvents, and easy to use.

##STR00001##

The invention relates to an antimicrobial coating composition formed by admixing choline bitartrate or choline chloride, an aminopropyltrialkoxysilane and water. This coating composition is preferably sprayed onto a surface and allowed to dry. Preferably the surface is a stainless steel surface. The coating reduces the amount of E. Coli on the surface of the substrate.

A polymeric material formed by reacting aminopolyol having a structure: ##STR00001##
wherein R4 is selected from the group consisting of H and CH.sub.2CH.sub.2OH; and an organosilane, wherein said organosilane has a structure: ##STR00002## wherein R1 is selected from the group consisting of H, CH.sub.3 and CH.sub.2CH.sub.3 and R2 is selected from the group consisting of OH, OCH.sub.3, OCH.sub.2CH.sub.3, alkyl, alkyl with a chlorine moiety, alkyl with an amino moiety, and alkyl with a quaternary ammonium group.

A polymeric material formed by reacting aminopolyol having a structure:

##STR00001## wherein R4 is selected from the group consisting of H and CH.sub.2CH.sub.2OH;
and an organosilane, wherein said organosilane has a structure:

##STR00002## wherein R1 is selected from the group consisting of H, CH.sub.3 and CH.sub.2CH.sub.3 and R2 is selected from the group consisting of OH, OCH.sub.3, OCH.sub.2CH.sub.3, alkyl, alkyl with a chlorine moiety, alkyl with an amino moiety, and alkyl with a quaternary ammonium group.

A stable solution of a ring-opened polymer is provided. The stable solution can be prepared using the following steps: (d) adding an N,O-heterocyclic compound of formula I or II and a DOPO-based compound into an organic solvent to provide a reaction solution: ##STR00001##
wherein R1 to R3, W1, W2, m, n, p and q are as defined in the specification. (e) heating the reaction solution to carry out a ring-opening reaction to provide a polymer solution; and (f) cooling the polymer solution to obtain the stable solution,
wherein the organic solvent is unreactive to the N,O-heterocyclic compound and the DOPO-based compound, and the amount of the DOPO-based compound is about 0.01 wt % to about 50 wt % based on the total weight of the N,O-heterocyclic compound and the DOPO-based compound. The stable solution is useful as a self-crosslinkable resin or a hardener for hardening epoxies.