公开(公告)号：US09796815B2

公开(公告)日：2017-10-24

申请号：US13955507

申请日：2013-07-31

Applicant: Dow Global Technologies LLC

Inventor： Xinrui Yu ,  Yiyong He ,  John W. Hull, Jr. ,  Paul Foley

IPC: C08G71/04 ,  C08G65/333

CPC classification number: C08G71/04 ,  C08G65/33303

Abstract: A first process to produce polycarbamate comprising providing urea in liquid form; and adding the liquid urea to a polyol is provided. A second process for producing polycarbamate comprising adding solid urea to a polyol in liquid form to form a reaction mixture is provided. Also provided is a reaction product produced by the first process or second process.

公开(公告)号：US20160304649A1

公开(公告)日：2016-10-20

申请号：US15101383

申请日：2014-12-12

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Daniel A. Beaudoin ,  John W. Hull, Jr. ,  Michal E. Porter ,  William G. Stobby ,  Gerald F. Billovitz ,  Timothy J. Young

IPC: C08F236/16

CPC classification number: C08F236/16 ,  C08C2/06 ,  C08J9/0061 ,  C08J2201/03 ,  C08J2325/04 ,  C08J2409/06 ,  C08L9/06

Abstract: Brominated styrene-butadiene copolymers are recovered from solution in an organic solvent. The copolymer solution is mixed with a liquid non-solvent in the presence of a suspension stabilizer to form a dispersion. The dispersion is heated to vaporize the organic solvent. This process produces precipitated copolymer particles having useful particle sizes, which can be easily used in downstream applications.

Abstract translation: 在有机溶剂中从溶液中回收溴化苯乙烯 - 丁二烯共聚物。 在悬浮稳定剂的存在下，将共聚物溶液与液体非溶剂混合以形成分散体。 将分散体加热以蒸发有机溶剂。 该方法产生具有有用颗粒尺寸的沉淀共聚物颗粒，其可以容易地用于下游应用中。

公开(公告)号：US10604626B2

公开(公告)日：2020-03-31

申请号：US14908795

申请日：2014-07-28

Applicant: Dow Global Technologies LLC

Inventor： Xinrui Yu ,  Yiyong He ,  John W. Hull, Jr. ,  Paul Foley

IPC: C08G71/04

Abstract: A first process to produce polycarbamate comprising providing urea in liquid form; and adding the liquid urea to a polyol is provided. A second process for producing polycarbamate comprising adding solid urea to a polyol in liquid form to form a reaction mixture is provided. Also provided is a reaction product produced by the first process or second process.

公开(公告)号：US10131746B2

公开(公告)日：2018-11-20

申请号：US14912160

申请日：2014-08-15

Applicant: Dow Global Technologies LLC

Inventor： Xinrui Yu ,  Yiyong He ,  John W. Hull, Jr. ,  Daryoosh Beigzadeh ,  Duane R. Romer ,  Thomas P. Clark ,  Peter Margl ,  Congcong Lu

IPC: C08G71/00 ,  C08G71/04 ,  C08G65/333 ,  C09D175/04 ,  C09D175/12

Abstract: A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a tetravalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times four equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.

公开(公告)号：US10457751B2

公开(公告)日：2019-10-29

申请号：US15542424

申请日：2016-01-27

Applicant: Dow Global Technologies LLC

Inventor： John W. Hull, Jr. ,  Shari Kram ,  Michal Elizabeth Porter ,  William G. Stobby

IPC: C08J9/00 ,  C08C19/12 ,  C08F8/20

Abstract: Conjugated diene polymers such as a styrene-butadiene copolymer are sequentially brominated by reaction with a quaternary ammonium tribromide or quaternary phosphonium tribromide and halohydrated by reaction with an N-haloimide compound. This produces a brominated and halohydrated polymer with very good thermal stability. The product is useful as a flame retardant in a variety of polymer systems.

公开(公告)号：US10343983B2

公开(公告)日：2019-07-09

申请号：US15986271

申请日：2018-05-22

Applicant: Dow Global Technologies LLC

Inventor： Xinrui Yu ,  Yiyong He ,  John W. Hull, Jr. ,  Daryoosh Beigzadeh ,  Duane R. Romer ,  Thomas P. Clark ,  Peter Margl ,  Congcong Lu

IPC: C09D7/63 ,  C07C269/00 ,  C08G65/333 ,  C08G71/04 ,  C07C271/10 ,  C09D175/04

Abstract: A polycarbamate comprising having less than 5 wt % total of biuret, cyanuric acid, and polyallophanate; and has a Gardner level of equal or greater than 3 is provided. A coating comprising the polycarbamate is also provided.

公开(公告)号：US10000610B2

公开(公告)日：2018-06-19

申请号：US14912161

申请日：2014-08-15

Applicant: Dow Global Technologies LLC

Inventor： Xinrui Yu ,  Yiyong He ,  John W. Hull, Jr. ,  Daryoosh Beigzadeh ,  Duane R. Romer ,  Thomas P. Clark ,  Peter Margl ,  Congcong Lu

IPC: C08G73/00 ,  C08G71/04 ,  C09D175/12 ,  C08G65/333

CPC classification number: C08G71/04 ,  C08G65/33306 ,  C08G65/33324 ,  C09D175/12

Abstract: A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a divalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times two equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.

公开(公告)号：US10717817B2

公开(公告)日：2020-07-21

申请号：US15980769

申请日：2018-05-16

Applicant: Dow Global Technologies LLC

Inventor： Xinrui Yu ,  Yiyong He ,  John W. Hull, Jr. ,  Daryoosh Beigzadeh ,  Duane R. Romer ,  Thomas P. Clark ,  Peter Margl ,  Congcong Lu

IPC: C08G71/04 ,  C08G65/333 ,  C09D175/12 ,  C08L75/12

Abstract: A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a divalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times two equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.

公开(公告)号：US10005751B2

公开(公告)日：2018-06-26

申请号：US15541207

申请日：2015-12-28

Applicant: Dow Global Technologies LLC

Inventor： Matthew J. Jansma ,  Michael F. Gullo ,  John W. Hull, Jr.

IPC: C07D307/89

CPC classification number: C07D307/89

Abstract: The present disclosure provides a process for the production of 4-azidosulfonylphthalic anhydride. In an embodiment, a process is provided and includes chlorinating 4-sulfophthalic acid trisodium salt (1), under solvent reaction conditions, to form a dissolved 4-chlorosulfonylphthalic anhydride (2) and an insoluble sodium chloride. The process includes first removing the insoluble sodium chloride from the dissolved 4-chlorosulfonylphthalic anhydride to form an isolated 4-chlorosulfonylphthalic anhydride. The process includes reacting, under solvent reaction conditions, the isolated 4-chlorosulfonylphthalic anhydride with sodium azide to form a dissolved 4-azidosulfonylphthalic anhydride and an insoluble sodium chloride. The process includes second removing the insoluble sodium chloride from the dissolved 4-azidosulfonylphthalic anhydride to form an isolated 4-azidosulfonylphthalic anhydride. The process includes retrieving a solid 4-azidosulfonylphthalic anhydride (3) from the isolated 4-azidosulfonylphthalic anhydride.

公开(公告)号：US10005723B2

公开(公告)日：2018-06-26

申请号：US14912157

申请日：2014-08-15

Applicant: Dow Global Technologies LLC

Inventor： Xinrui Yu ,  Yiyong He ,  John W. Hull, Jr. ,  Daryoosh Beigzadeh ,  Duane Romer ,  Thomas Clark ,  Peter Margl ,  Congcong Lu

IPC: C07C271/00 ,  C07C269/00 ,  C08G65/333 ,  C08G71/04 ,  C07C271/10 ,  C09D7/12 ,  C09D175/04 ,  C09D7/63

CPC classification number: C07C269/00 ,  C07C271/10 ,  C08G65/33303 ,  C08G65/33324 ,  C08G71/04 ,  C09D7/63 ,  C09D175/04

Abstract: A process to prepare polycarbamate comprising adding urea to a polyol in the presence of at least one catalyst selected from the group consisting of compounds having the following formula MmZn; wherein M is a trivalent metal, and Z is an anionic functionality or a functionality capable of forming a covalent bond with M and wherein n times a valence number of Z equals X and m times three equals Y wherein the absolute value of X equals the absolute value of Y is provided. Also provided are a polycarbamate produced according to the process and a coating composition comprising the polycarbamate.