1460917568-57abe24e-3c67-46c1-9f76-204da5309eaa

1. Roof module of a motor vehicle roof which is mounted on a fixed body structure and which forms the top of the motor vehicle roof, wherein the roof module comprises guide rails for movable attachment of at least one roof module component.
2. Roof module as claimed in claim 1, wherein said guide rails comprise two opposed guide rails which extend on the roof module in a lengthwise direction thereof.
3. Roof module as claimed in claim 1, wherein the roof module has two outer side edge areas which are elevated relative to an interposed middle part, and wherein each of the outer side edge areas has an inner flank on which a respective one of the guide rails is located.
4. Roof module as claimed in claim 1, wherein the roof module component is one of a plurality of different parts which are interchangeably mountable on the roof module.
5. Roof module as claimed in claim 4, wherein the plurality of different parts comprise a cover, a closed cargo box and an open carrier.
6. Roof module as claimed in claim 1, wherein the roof module has two outer side edge areas and an inside area which lies between the edge areas and wherein the inside area is divided at least into a front working section and a rear working section.
7. Roof module as claimed in claim 6, wherein the roof module component covers a one of the working sections which has a roof module opening.
8. Roof module as claimed in claim 1, wherein the roof module is securely mounted on the roof members.
9. Roof module as claimed in claim 1, wherein the roof module is securely mounted on lateral lengthwise roof members, on a front roof apron and on a rear transverse roof member.
10. Roof module as claimed in claim 6, wherein the front working section of the roof module is an openable roof part.
11. Roof module as claimed in claim 1, further comprising additional mounting receivers for load carriers.
12. Roof module of a motor vehicle roof which is mounted on a fixed body structure and which forms the top of the motor vehicle roof, wherein the roof module comprises a receiving means for receiving an interchangeable roof module component which is pushed-in from a rear end of the module.
13. Roof module as claimed in claim 12, wherein said guide rails comprise two opposed guide rails which extend on the roof module in a lengthwise direction thereof.
14. Roof module as claimed in claim 12, wherein the roof module has two outer side edge areas which are elevated relative to an interposed middle part, and wherein each of the outer side edge areas has an inner flank on which a respective one of the guide rails is located.
15. Roof module as claimed in claim 12, wherein the roof module component is one of a plurality of different parts which are interchangeably mountable on the roof module.
16. Roof module as claimed in claim 15, wherein the plurality of different parts comprise a cover, a closed cargo box and an open carrier.
17. Roof module as claimed in claim 12, wherein the roof module has two outer side edge areas and an inside area which lies between the edge areas and wherein the inside area is divided at least into a front working section and a rear working section.
18. Roof module as claimed in claim 17, wherein the roof module component covers a one of the working sections which has a roof module opening.
19. Roof module as claimed in claim 12, wherein the roof module is securely mounted on the roof members.
20. Roof module as claimed in claim 12, wherein the roof module is securely mounted on lateral lengthwise roof members, on a front roof apron and on a rear transverse roof member.
21. Roof module as claimed in claim 17, wherein the front working section of the roof module is an openable roof part.
22. Roof module as claimed in claim 12, further comprising additional mounting receivers for load carriers.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A solid titanium catalyst component (I) comprising titanium, magnesium, halogen, a cyclic ester compound (a) represented by the following formula (1) and a cyclic ester compound (b) represented by the following formula (2):
wherein n is an integer of 5 to 10,
R2 and R3 are each independently COOR1 or R, at least one of R2 and R3 is COOR1, and a single bond (except Ca\u2014Ca bond, and Ca\u2014Cb bond in the case where R3 is R) in the cyclic skeleton may be replaced with a double bond,
R1 is each independently a monovalent hydrocarbon group of 1 to 20 carbon atoms,
plural R are each independently an atom or a group selected from a hydrogen atom, a hydrocarbon group of 1 to 20 carbon atoms, a halogen atom, a nitrogen-containing group, an oxygen-containing group, a phosphorous-containing group, a halogen-containing group and a silicon-containing group, and they may be bonded to one another to from a ring, but at least one R is not a hydrogen atom, and
in a skeleton of the ring formed by bonding of plural R to one another may be contained a double bond, and when two or more Ca to each of which COOR1 is bonded are contained in the skeleton of the ring, the number of carbon atoms to constitute the skeleton of the ring is 5 to 10;
wherein n is an integer of 5 to 10, and
R4 and R5 are each independently COOR1 or a hydrogen atom, at least one of R4 and R5 is COOR1, R\u2032 is each independently a monovalent hydrocarbon group of 1 to 20 carbon atoms, and a single bond (except Ca\u2014Ca bond, and Ca\u2014Cb bond in the case where R5 is R) in the cyclic skeleton may be replaced with a double bond.
2. The solid titanium catalyst component (I) as claimed in claim 1, wherein in the formulas (1) and (2), all the bonds between carbon atoms in the cyclic skeleton are single bonds.
3. The solid titanium catalyst component (I) as claimed in claim 1, wherein in the formulas (1) and (2), n is 6.
4. The solid titanium catalyst component (I) as claimed in claim 1, wherein the cyclic ester compound. (a) is represented by the following formula (Ia) and the cyclic ester compound (b) is represented by the following formula (2a);
wherein n is an integer of 5 to 10,
a single bond (except Ca\u2014Ca bond and Ca\u2014Cb bond) in the cyclic skeleton may be replaced with a double bond,
R1 is each independently a monovalent hydrocarbon group of 1 to 20 carbon atoms,
plural R are each independently an atom or a group selected from a hydrogen atom, a hydrocarbon group of 1 to 20 carbon atoms, a halogen atom, a nitrogen-containing group, an oxygen-containing group, a phosphorous-containing group, a halogen-containing group and a silicon-containing group, and they may be bonded to one another to from a ring, but at least one R is not a hydrogen atom, and
in a skeleton of the ring formed by bonding of plural R to one another may be contained a double bond, and when two or more Ca to each of which COOR1 is bonded are contained in the skeleton of the ring, the number of carbon atoms to constitute the skeleton of the ring is 5 to 10;
wherein n is an integer of 5 to 10, and
R1 is each independently a monovalent hydrocarbon group of 1 to 20 carbon atoms, and a single bond (except Ca\u2014Ca bond and Ca\u2014Cb bond) in the cyclic skeleton may be replaced with a double bond.
5. An olefin polymerization catalyst comprising:
the solid titanium catalyst component (I) of claim 1, and
an organometallic compound (II) containing a metal atom selected from the group 1, the group 2 and the group 13 of the periodic table.
6. The olefin polymerization catalyst as claimed in claim 5, further comprising an electron donor (III).
7. An olefin polymerization process comprising polymerizing an olefin in the presence of the olefin polymerization catalyst of claim 5.
8. An olefin polymerization process comprising polymerizing an olefin in the presence of the olefin polymerization catalyst of claim 6.