公开(公告)号：US20210139871A1

公开(公告)日：2021-05-13

申请号：US16954276

申请日：2018-12-10

Applicant: BASF SE

Inventor： Xuqiu TAN ,  Kenneth BARRETT ,  Jared DENNIS ,  Dongmei REN ,  Corey DODGE ,  Bin ZHANG

IPC: C12N9/22 ,  C11D3/386 ,  A23L33/18 ,  A23K20/147 ,  A23L29/00 ,  A23K20/189

Abstract: Disclosed herein are polypeptides having nuclease activity. Some of the polypeptides having nuclease activity were generated by an improved gene site mutagenesis (“GSSM”) method or the tailored multi-site combinatorial assembly (“TMCA”) method. Also disclosed are compositions and kits comprising the polypeptides having nuclease activity, and methods for making and using these polypeptides, compositions and kits.

公开(公告)号：US20180127633A1

公开(公告)日：2018-05-10

申请号：US15570135

申请日：2016-04-25

Applicant: BASF SE

Inventor： Ewelina BURAKOWSKA-MEISE ,  Patrick LEIBACH ,  Yun HAN ,  Dongmei REN

IPC: C09K8/035 ,  E21B43/267 ,  C09K8/68 ,  C09K8/70 ,  C09K8/80 ,  C08L71/08 ,  C12N9/42

CPC classification number: C09K8/035 ,  C08L71/08 ,  C09K8/68 ,  C09K8/685 ,  C09K8/706 ,  C09K8/80 ,  C09K2208/24 ,  C12N9/2437 ,  C12Y302/01004 ,  E21B43/267

Abstract: The present disclosure relates to microcapsules with shell and a core with an average particle size of the microcapsules in the range from 0.5 to 20 μm, wherein the shell is a polyester and wherein the core material comprises an enzyme, a method of making the microcapsules and methods of using the microcapsules in the field of recovery of hydrocarbons from a subterranean formation.