c12)  United States Patent  Dahlen et al.  (IO)  Patent No.:  US 8,846,844 B2  Sep.30,2014  (45)  Date of Patent:  (54)  CROSSLINKABLE POLYOLEFIN  COMPOSITION COMPRISING SILANE  GROUPS FORMING AN ACID OR A BASE  UPON HYDROLYSATION  (75)  Inventors:  Kristian Dahlen,  Stora Hoga (SE);  Roger Carlsson,  Save (SE)  (73)  Assignee:  Borealis AG,  Vienna (AT)  ( *)  Notice:  Subject to any disclaimer, the term ofthis  patent is extended or adjusted under 35  U.S.C. 154(b) by  O  days.  (21)  Appl. No.:  13/265,555  (22)  PCT Filed:  May 14, 2010  (86)  PCT No.:  PCT /EP2010/002972  § 371 (c)(l),  (2), ( 4) Date:  Nov. 30, 2011  (87)  PCT Pub. No.:  WO2010/130458  (51)  Int. Cl.  (52)  U.S. Cl.  CPC .............  C0SF 255100  (2013.01);  C0SF 255102  (2013.01);  C0SL 51106  (2013.01)  USPC ..................................  528/32;  528/22; 528/34  ( 58)  Field of Classification Search  None  See application file for complete search history.  FOREIGN PATENT DOCUMENTS  OTHER PUBLICATIONS  (57)  ABSTRACT  8 Claims, No Drawings  U.S. PATENT DOCUMENTS  (56)  References Cited  (30)  Foreign Application Priority Data  (65)  Prior Publication Data  May 14, 2009  Mar. 3, 2010  (EP) ... ... ... .. ... ... ... ... .. ... ... ... ... 09006546  (EP) ..................................... 10002178  C0SG  77108  C0SF 255102  C0SL 51106  C0SF 255100  (2006.01)  (2006.01)  (2006.01)  (2006.01)  3,646,155  A  4,117,195 A  4,297,310  A  4,351,876 A  4,397,981 A  4,413,066 A *  4,446,283  A  4,456,704 A  4,574,133 A *  4,598,116 A *  2/ 1972 Scott  9/ 1978 Swarbrick et al.  10/1981 Akutsu et al.  9/1982 Doi et al.  8/1983 Doi et al.  11/1983 Isaka et al. .................... 521/149  5/1984 Doi et al.  6/1984 Fukumura et al.  3/1986 Umpleby ...................... 524/147  7/1986 Keogh et al ................... 524/398  EP  EP  EP  EP  EP  EP  JP  JP  WO  WO  WO  WO  WO  1 309 631  4/2005  1 309 632  4/2005  1 849 816  10/2007  1 862 492  12/2007  1 862 500  12/2007  1 862 501  12/2007  54-076647  6/1979  60-139713  7/1985  WO 95/17463  6/1995  WO 2005/003199  1/2005  WO 2005/023908  *  3/2005  WO 2010/028876 Al *  3/2010  WO 2010/028877  *  3/2010  The present invention relates to a polyolefin composition  comprising (A) a crosslinkable polyolefin with hydrolysable  silane groups which upon hydrolysation form an acid or a  base, characterised in that the acid or base generates a gel  content of at least 40% after 40 hours in the 90°  C. cross› linking test, wherein the acid or base is added in an amount of  4.5 mmol/kg to an ethylene/vinyltrimethoxysilane copoly› mer with a MFR$_{2}$=2 g/10 min, a density of 923 g/cm 3 , and 2  wt.% ofvinyltrimethoxysilane and then is cross-linked in a  waterbath at 90°  C., and to a polyolefin composition compris› ing (i) a crosslinkable polyolefin with hydrolysable silane  groups, and (ii) a non-polymeric compound with hydrolys› able silane groups which upon hydrolysation form an acid or  a base, characterised in that the acid or base generates a gel  content of at least 40% after 40 hours in the 90°  C. cross› linking test, wherein the acid or base is added in an amount of  4.5 mmol/kg to an ethylene/vinyltrimethoxysilane copoly› mer with a MFR$_{2}$=2 g/10 min, a density of 923 g/cm 3 , and 2  wt.% ofvinyltrimethoxysilane and then is cross-linked in a  waterbath at 90°  C.  International Search Report mailed Aug. 20, 2010 for International  application No. PCT/EP2010/002972.  Written Opinion mailed Aug. 20, 2010 for International application  No. PCT/EP2010/002972.  Response to Written Opinion dated Feb. 23, 2011 for International  application No. PCT/EP2010/002972.  International Preliminary Report on Patentability mailed Aug. 2,  2011 for International application No. PCT/EP2010/002972.  * cited by examiner  Primary Examiner  - Marc Zimmer  (74)  Attorney, Agent, or Firm  - Fay Sharpe LLP  4,689,369  A  4,753,993  A  *  4,911,075 A *  5,773,145 A *  8/1987 Ishino et al.  6/1988 Keogh .......................... 525/100  2008/0176981 Al  2010/0160471 Al*  2011/0144278 Al*  3/1990 Lewis et al.  101/453  6/ 1998 Inoue et al. . . . . . . . . . . . . . . . . . . . 4 28/3 89  7 /2008 Biscoglio et al.  6/2010 Sengupta et al. ............. 521/142  6/2011 Weissenbach et al. ....... 525/288  PCT Pub. Date:  Nov.18, 2010  US 2012/0071607 Al  Mar. 22, 2012  US008846844B2 