An interlayer film for laminated glass of the present invention comprises a thermoplastic resin, a carboxylic acid, and an alkali (alkaline earth) metal, wherein, when a molar concentration per unit volume of the alkali (alkaline earth) metal in the interlayer film for laminated glass, measured by ICP atomic emission spectrophotometry is A (mol/m.sup.3); a molar concentration per unit volume of the carboxylic acid in the interlayer film for laminated glass, measured by GC-MS is B (mol/m.sup.3); a molar concentration per unit volume of the carboxylic acid in the interlayer film for laminated glass, measured by GC-MS after a hydrochloric acid aqueous solution is added to the interlayer film for laminated glass to be left at 23° C. for 12 hours is Y; and a molar concentration per unit volume of the carboxylic acid, obtained by subtracting the molar concentration B from the concentration Y is D (mol/m.sup.3), the molar concentration A is more than 0.35 mol/m.sup.3 and less than 1.00 mol/m.sup.3, and a carboxylic acid isolation ratio (1) represented by (1−D/A)×100 is 40% or less.

An interlayer film for laminated glass of the present invention comprises a thermoplastic resin, a carboxylic acid, and an alkali (alkaline earth) metal, wherein, when a molar concentration per unit volume of the alkali (alkaline earth) metal in the interlayer film for laminated glass, measured by ICP atomic emission spectrophotometry is A (mol/m.sup.3); a molar concentration per unit volume of the carboxylic acid in the interlayer film for laminated glass, measured by GC-MS is B (mol/m.sup.3); a molar concentration per unit volume of the carboxylic acid in the interlayer film for laminated glass, measured by GC-MS after a hydrochloric acid aqueous solution is added to the interlayer film for laminated glass to be left at 23° C. for 12 hours is Y; and a molar concentration per unit volume of the carboxylic acid, obtained by subtracting the molar concentration B from the concentration Y is D (mol/m.sup.3), the molar concentration A is more than 0.35 mol/m.sup.3 and less than 1.00 mol/m.sup.3, and a carboxylic acid isolation ratio (1) represented by (1−D/A)×100 is 40% or less.

A process for preparation of a biologically active polymer comprising an acrolein derived segment and a polyalkylene glycol oligomer, the process comprising reacting polyalkylene glycol with acrolein in aqueous solution to form a copolymer of molecular weight no more than 1000 Daltons at a temperature of no more than 15° C.

The present disclosure relates to a composition that includes ##STR00001##
where R.sub.1 and R.sub.2 include at least one of a hydrogen, a hydroxyl group, and/or an alkyl group, R.sub.3 and R.sub.4 include at least one of hydrogen, a hydroxyl group, an alkyl group, and/or a ketone, and 1≤n≤2000.

This disclosure describes various poly(acetal) polymers including processable, elastomeric poly(acetals). Various polymers described herein have a chemical structure containing cyclic acetal monomer units derived from diglycerol and a dialdehyde compound. The disclosure also relates to a method of preparing such polymers. The method can involve heating and/or adding acid to a mixture containing diglycerol and a dicarbonyl compound so as to obtain an elastomeric polymer.

This disclosure describes various poly(acetal) polymers including processable, elastomeric poly(acetals). Various polymers described herein have a chemical structure containing cyclic acetal monomer units derived from diglycerol and a dialdehyde compound. The disclosure also relates to a method of preparing such polymers. The method can involve heating and/or adding acid to a mixture containing diglycerol and a dicarbonyl compound so as to obtain an elastomeric polymer.

A food or beverage container, or portion thereof, including a metal substrate and a coating on at least a portion of the metal substrate, the coating formed being from a coating composition comprising a polymer having one or more substituted or unsubstituted spirocyclic segments such as substituted or unsubstituted segments of 2,4,8,10-tetraoxaspiro [5.5] undecane.

A food or beverage container, or portion thereof, including a metal substrate and a coating on at least a portion of the metal substrate, the coating formed being from a coating composition comprising a polymer having one or more substituted or unsubstituted spirocyclic segments such as substituted or unsubstituted segments of 2,4,8,10-tetraoxaspiro [5.5] undecane.

A molding comprising a matrix from the crosslinking of an aliphatic polyketone with at least one diamine source as crosslinker with formation of imine groups, or a polymer mixture comprising at least one polyketone (PK) and at least one crosslinker, in which the diamine source and the at least one crosslinker are selected from di(aminophenyl) compounds in which the two aminophenyl rings are joined to one another via an aliphatic group which has a carbocyclic radical, diamine compounds selected from compounds of the formulae (I), (II) and (III),

##STR00001##

oligomers/polymers which have at least two amide groups, saturated alicyclic compounds which have at least two primary amine groups and oligomers/polymers which comprise them in incorporated form, and mixtures thereof.

A molding comprising a matrix from the crosslinking of an aliphatic polyketone with at least one diamine source as crosslinker with formation of imine groups, or a polymer mixture comprising at least one polyketone (PK) and at least one crosslinker, in which the diamine source and the at least one crosslinker are selected from di(aminophenyl) compounds in which the two aminophenyl rings are joined to one another via an aliphatic group which has a carbocyclic radical, diamine compounds selected from compounds of the formulae (I), (II) and (III),

##STR00001##

oligomers/polymers which have at least two amide groups, saturated alicyclic compounds which have at least two primary amine groups and oligomers/polymers which comprise them in incorporated form, and mixtures thereof.