Ulllted States Patent [19] [11] Patent Number: 5,834,118. R?nby et al. [45] Date of Patent: Nov. 10, 1998

USOO5834118A Ulllted States Patent [19] [11] Patent Number: R?nby et al. [45] [54] Date of Patent: 5,834,118 Nov. 10, 1998 RADIATION CURABLE R...
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USOO5834118A

Ulllted States Patent [19]

[11] Patent Number:

R?nby et al.

[45]

[54]

Date of Patent:

5,834,118 Nov. 10, 1998

RADIATION CURABLE RESINS

4,558,075

12/1985 Suss et a1. ............................ .. 523/216

COMPRISING HYPERBRANCHED

5,241,019

8/1993 Otsuki et a1. ......................... .. 525/437

POLYESTERS FOREIGN PATENT DOCUMENTS

[75] Inventors: Bengt Rflnby, Djursholm, Sweden; Shi Wenfang,

AIlhlll, China

[73] Assignee: Neste Oy 0f Keilaniemi, Espoo,

WO 93/17060

9/1993

WIPO _

W0 93 18079

9 1993

WIPO .

/

/

Finland

[21] APP] NO;

793,611

Primary Examiner—Samuel A. Acquah

[22]

PCT Fl 01 1 e :

s ep. s , 1995

A [tomey, Agem,

[86]

PCT No.:

PCT/SE95/01013

[57]

§ 371 Date;

May 9, 1997

[51]

_

_

_

aromatic polycarboXylic anhydride With 2 to 4 carboXyl groups, preferably 3 carboXyl groups, each hydroXyl group of the polyol forming an ester linkage With one anhydride _

group of the polycarboXylic anhydride, and further glycidyl

Forelgn Apphcatlon Pnonty Data

Sep. 8, 1994

[SE]

Int Cl 6

(meth)acrylate or allyl glycidyl ether forming ester linkages

Sweden ................................ .. 9402994

With the remaining carboXyl groups of the anhydride and

B32B 27/06_ C08G 63/12

free hydroXyl groups. Further in the hyperbranched polyes

[52] US. Cl. ........................ .. 428/482; 528/272; 528/274; [58]

ABSTRACT

hydroXyl groups, preferably of equivalent reactivity, and an

§ 102(6) Date' May 9’ 1997 PCT Pllb- NO-I W096/07688 PCT Pub Date, Mar_ 14’ 1996 _

[30]

F‘lrm—B anner & W‘1tco ff, Lt d .

Hyperbranched polyester of a polyol With 3 to 10 reactive

_

[87]

or

m (me/Wayne anhF/dride anal/0r an aliphatic carboxyh"

528/283; 528/296; 528/297; 528/302; 528/306;

anhydride form ester linkages With the free hydroXyl groups.

528/308; 525/437; 522/6; 428/480 Field of Search ................................... .. 528/272, 274, 528/283, 296, 297, 302, 306, 308; 525/437;

The invention also comprises a process for the production of hyperbranched polyesters and such polyesters obtainable by the process. The hyperbranched polyesters can be used as

522/6; 428/480> 482

resins, curable by UV irradiation, for the production of

.

[56]

coatin s, adhesives, laminates, foils and thin ?lms and

References Cited

g

?bre-reinforced composites.

U.S. PATENT DOCUMENTS 4,557,991

12/1985 Takagiwa et a1. .................... .. 430/109

42 Claims, 5 Drawing Sheets

DDDD

DD D

BBD

D

D

D D

D D

D

D

—>

BBD

D DD

DDDD

Reaction scheme for the synthesis of the hyperbranched polyester.

U.S. Patent

Nov. 10,1998

Sheet 1 of5

D

B

B

D

D D D D

D

D

—>

——>

D B

D

B

D

5,834,118

D

D

D

D

D D

D D

D

D D D D

Reaction scheme for the synthesis of the hyperbranched polyester.

Flgure l I

l

1.6—

“

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