The present invention may provide a composition containing a biologically degradable resin from which a molded article having suppressed deterioration of the tensile strength and the elongation at the breaking point thereof can be obtained. The present invention may provide a resin composition including a biologically degradable resin, a heavy calcium carbonate, and acetyl tributyl citrate, in which a mass ratio of the biologically degradable rein to the heavy calcium carbonate is 10:90 to 70:30, the biologically degradable resin includes at least polybutylene adipate terephthalate or polybutylene succinate adipate, a content of the polybutylene adipate terephthalate or the polybutylene succinate adipate relative to the biologically degradable resin is 70% or more by mass, and a content of the acetyl tributyl citrate relative to the resin composition is 5.0% or more and 20.0% or less by mass.

The present disclosure sets forth ink compositions having a biodegradable polyurethane binder that can be used for textile printing. In one example, an ink composition can include water, an organic co-solvent, a colorant, and a biodegradable polyurethane binder. The biodegradable polyurethane binder can include prepolymer segments including polymerized monomers of a diisocyanate and a diol. The diol can include to terminal 6-hydroxyhexanoate groups linked by an organic linking group. Chain extenders can connect the prepolymer segments. The chain extenders can include a polymerized diamine.

Biodegradable polymers with advantageous physical and chemical properties are described, as well as methods for making such polymers. In one embodiment, a new chemical synthesis route to technologically important biodegradable poly(3-hydroxybutyrate) (P3HB) with high isotacticity and molecular weight required for a practical use is described. The new route can utilize racemic eight-membered cyclic diolide (rac-DL), meso-DL, or a rac-DL and meso-DL mixture, derived from bio-sourced dimethyl succinate, and enantiomeric (R,R)-DL and (S,S)-DL, optically resolved by metal-based catalysts. With a stereoselective racemic molecular catalyst, the ROP of rac-DL under ambient conditions produces rapidly P3HB with essentially perfect isotacticity ([mm]>99%), high crystallinity and melting temperature (T.sub.m=171° C.), as well as high molecular weight and low dispersity (M.sub.n=1.54×10.sup.5 g/mol, Ð=1.01).

In one aspect, the disclosure relates to biorenewable polyesters and polyester copolymers derived from camphoric acid, methods of making same, and articles comprising same. The disclosed biorenewable polyesters can have a Mn of from about 5,000 Da to about 500,000 Da. Also disclosed herein is the preparation of various monomers useful in the reactions disclosed herein, e.g., cis-1,4-anhydroerythritol and bis(2-hydroxyethyl) camphorate. In various aspects, the disclosed biorenewable polyesters and polyester copolymers can be used to the production of various articles utilizing a conventional polyester or polyester copolymer, that is, to replace, in part or in whole, a conventional nonbiorenewable polyester or polyester copolymer. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Core shell microcapsules are provided wherein the capsule shell is an interfacial copolymer formed of a gelatin and an isocyanate.

An object of the present invention is to provide a technique capable of reducing the hydrolysis of a biodegradable resin at the time of molding with respect to a biodegradable resin-containing resin composition having a high water content. Provided is a resin composition comprising: a biodegradable resin and heavy calcium carbonate particles in a mass ratio of 50:50 to 10:90, in which 0.5% by mass or more and 3.5% by mass or less of calcium oxide is comprised relative to the resin composition, and 0.2% by mass or more of water is comprised relative to the resin composition.

Disclosed is a composition including controlled release particles, wherein each of the controlled release particles includes: (a) a core including at least one hydrophobic active ingredient; and (b) a wall at least partially surrounding the core and including the reaction products of: (i) an organofunctional silane; (ii) an epoxy; (iii) an amine; (iv) an isocyanate; (v) an epoxide curing agent; wherein the controlled release particles are effective to retain the at least one hydrophobic active ingredient upon exposure to water and effective to release the at least one hydrophobic active ingredient in response to friction. A method for preparing the composition is also disclosed.

Method for manufacturing microcapsules enclosing a substance referred to as the active substance, in which method: there are provided an aqueous solution of a surfactant, an oily phase comprising the active substance and at least a first monomer X, and a polar phase having at least a second monomer Y; an O/W emulsion is prepared by adding the oily phase to the aqueous solution of the surfactant; the polar phase is added to the O/W emulsion in order to obtain a polymer by polymerisation of the X and Y monomers; starting from this reaction mixture, the microcapsules are isolated and comprise a wall which is formed by the polymer and which encloses the active substance; the polymer is a poly(beta-amino ester).

An aliphatic-aromatic polyester resin comprising principal structural units that includes aliphatic dicarboxylic acid units, aromatic dicarboxylic acid units, and aliphatic diol units and/or alicyclic diol units, wherein an abundance ratio (molar ratio) between the aliphatic dicarboxylic acid units and the aromatic dicarboxylic acid units is 15:85 to 85:15; the aliphatic-aromatic polyester resin has a glass transition temperature of −25° C. or more; and the aliphatic-aromatic polyester resin has branched structures represented by formulae (1) to (4) below:

##STR00001## where Ar.sup.1, Ar.sup.2, and Ar.sup.3 each independently represent an optionally substituted divalent group having 4 to 12 carbon atoms, the optionally substituted divalent group being a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group; R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and n, m, and r are each independently an integer of 2 to 10.

The invention provides a class of polymeric materials being ABA tri-block or AB di-block, comprised of biodegradable segments and poly(propylene oxide) (PPO) segment and uses thereof.