Iowa State University Research Foundation Inc

Austin Hohmann

Eric William Cochran

Nacu Hernandez

Ronald Christopher Williams

Michael Forrester

Joseph Herbert Podolsky

Shailja Goyal

Mohamed Elkashef

Conglin Chen

Paul Ledtje

Theodore Huisman

Ashley F Buss

Irvin Pinto

Maxwell D Staver

Baker W Kuehl

The present invention relates to a homopolymer, copolymer, block copolymer, and statistical copolymer comprising plural polyol monomeric units. The polyol monomeric units being acrylated and acylated or acetalized. The acrylated and acylated or acetalized polyol monomeric units have an average degree of acrylation which is 1 or more, but less than the number of the hydroxyl groups of the polyol and have an average degree of acylation or acetalization which is 1 or more, but less than the number of the hydroxyl groups of the polyol. The present invention also relates to a method of making the homopolymers, copolymers, block copolymers, and statistical copolymers, and using them in various applications, such as asphalt rubber modifiers, adhesives, or an additive in a fracking fluid for oil fracking.

Acrylated and acylated or acetalized polyol as a biobased substitute for hard, rigid thermoplastic and thermoset materials

Provided herein are an emulsified asphalt product and an emulsified coating product. Both emulsified products contain one or more rejuvenators of formula (I) or formula (X). The emulsified asphalt product is useful for improving the performance of aged or brittle resinous binders in paving applications while the emulsified coating product is similarly useful in roofing applications. Also provided herein is a treated bituminous pavement where the performance grade varies with depth.

Maintenance treatments useful for improving the performance of aged or brittle resinous binders in paving or roofing

The present application is directed to an asphalt binder composition comprising:

Biosolvents useful for improved asphalt products utilizing recycled asphalt pavement or other brittle asphalt binders such as vacuum tower bottom

The present application relates to a multiblock copolymer comprising at least one PA block, at least one PB block, and at least one PC block. PC block is positioned between PA block and PB block, where PC block is a rubber block, and where PA represents a polymer block comprising one or more units of monomer A, PB represents a polymer block comprising one or more units of monomer B, and PC represents a polymer block comprising one or more units of monomer C, with monomers A and B being the same or different.

Multiblock copolymer and method of making thereof

The present invention relates to relates to a method of producing an improved asphalt. This method includes providing an asphalt binder and providing a compound of formula (I): as described herein. The asphalt binder is mixed with the compound of formula (I) under conditions effective to produce an improved asphalt. Also disclosed are an asphalt product and a method of making asphalt material.

Asphalt products and methods of producing them for rejuvenation and softening of asphalt

The present invention relates to a method of preparing a multiblock copolymer. This method comprises i) providing a block copolymer comprising at least one PA block and at least one PB block, where PA represents a polymer block comprising one or more units of monomer A and PB represents a polymer block comprising one or more units of monomer B, with monomers A and B being the same or different, where the block copolymer contains a chain transfer agent moiety (CTA); ii) providing a radically polymerizable monomer C; and iii) polymerizing the block copolymer with monomer C under conditions effective to achieve a number average degree of polymerization (Nn) for the multiblock copolymer of up to 100,000 without gelation.

The present invention relates to a compound having the structure of formula (I), wherein R, R, R, R, R, R, and Rare as described herein. The present invention also relates to a process for the preparation of a compound of formula (I) and to a process for the synthesis of a polymer using the compound of formula (I) through controlled free radical polymerization. 

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Dubuque, IA, United States of America

Austin Hohmann